XY Chart Labels on xAxes

Ignition 8.1.24
Perspective
XY Chart
Pulling what's left of my hair out. I am usually pretty good at finding the answers I am looking for but not today.
I have a Query datasource, this issue happens whether using json or dataset return formats.
I am having trouble with getting the data and labels to be aligned when I render the xAxes by date. I lose one of the columns of data but it retains the label (so 1 more label than column). If I render by category, I get the correct amount of columns and labels and everything is aligned nicely but the date is then turned into epoch time (even though my incoming data isn't) and I can't seem to format that back to a usable date/time.
What simple and obvious thing am I missing here?



Are you sure the query is always sorted by datetime?

The query is authored that way, and every time I look at the datasets from different machines they are always in the correct order. I can send a snippet of the query itself and additional data if needed, would like to not here though.

No, not necessary if you've checked. Not sure what it might be. You probably will have to share enough for us to reproduce, though.

If you can boil it down to a single view with a single component, then delete the bindings so the data remains, that would help. Prune proprietary info at that point. Use shift-right-click in the designer tree to get to the Copy JSON option. Paste here into a formatted code block.

If you can't boil it down like this, a support ticket would be appropriate.

Ok, let me know if a support ticket would be more appropriate. I assume it's pilot error at this point though.

This is when rendered as a category. I will send rendered as a date on request (just to see if you need it and simplify if not).

{
  "custom": {},
  "params": {},
  "props": {},
  "root": {
    "children": [
      {
        "meta": {
          "name": "xy_chart"
        },
        "position": {
          "height": 416,
          "width": 770
        },
        "propConfig": {
          "props.yAxes[0].value.range.max": {
            "binding": {
              "config": {
                "expression": "((1800/{[MM_Tag_Provider]MM DC Tags/Hall 2/S57/Standard Cycle})*{[MM_Tag_Provider]MM DC Tags/Hall 2/S57/Standard Cavities})*1.1"
              },
              "type": "expr"
            }
          }
        },
        "props": {
          "dataSources": {
            "dataset": {
              "$": [
                "ds",
                192,
                1749055392838
              ],
              "$columns": [
                {
                  "data": [
                    1749011400000,
                    1749013200000,
                    1749015000000,
                    1749016800000,
                    1749018600000,
                    1749020400000,
                    1749022200000,
                    1749024000000,
                    1749025800000,
                    1749027600000,
                    1749029400000,
                    1749031200000,
                    1749033000000,
                    1749034800000,
                    1749036600000,
                    1749038400000,
                    1749040200000,
                    1749042000000,
                    1749043800000,
                    1749045600000,
                    1749047400000,
                    1749049200000,
                    1749051000000,
                    1749052800000
                  ],
                  "name": "time",
                  "type": "Date"
                },
                {
                  "data": [
                    372,
                    376,
                    376,
                    372,
                    372,
                    376,
                    376,
                    372,
                    376,
                    372,
                    376,
                    372,
                    372,
                    376,
                    376,
                    368,
                    324,
                    376,
                    372,
                    376,
                    372,
                    376,
                    372,
                    372
                  ],
                  "name": "good",
                  "type": "Short"
                },
                {
                  "data": [
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    32,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0
                  ],
                  "name": "total_rejects",
                  "type": "Integer"
                },
                {
                  "data": [
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#FF0000",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00",
                    "#00FF00"
                  ],
                  "name": "color",
                  "type": "String"
                }
              ]
            }
          },
          "legend": {
            "labels": {
              "font": {
                "size": ""
              }
            }
          },
          "scrollBars": {
            "horizontal": {
              "enabled": false
            },
            "vertical": {
              "enabled": false
            }
          },
          "series": [
            {
              "candlestick": {
                "appearance": {
                  "deriveFieldsFromData": {
                    "fill": {
                      "color": "",
                      "opacity": ""
                    },
                    "stroke": {
                      "color": "",
                      "opacity": "",
                      "width": ""
                    }
                  },
                  "fill": {
                    "color": "",
                    "opacity": 1
                  },
                  "heatRules": {
                    "dataField": "",
                    "enabled": false,
                    "max": "",
                    "min": ""
                  },
                  "stacked": false,
                  "stroke": {
                    "color": "",
                    "opacity": 1,
                    "width": 1
                  }
                },
                "high": {
                  "x": "",
                  "y": ""
                },
                "low": {
                  "x": "",
                  "y": ""
                },
                "open": {
                  "x": "",
                  "y": ""
                }
              },
              "column": {
                "appearance": {
                  "deriveFieldsFromData": {
                    "fill": {
                      "color": "color",
                      "opacity": ""
                    },
                    "stroke": {
                      "color": "",
                      "opacity": "",
                      "width": ""
                    }
                  },
                  "fill": {
                    "color": "#00FF00",
                    "opacity": 1
                  },
                  "heatRules": {
                    "dataField": "",
                    "enabled": false,
                    "max": "",
                    "min": ""
                  },
                  "height": null,
                  "stacked": false,
                  "stroke": {
                    "color": "",
                    "opacity": 1,
                    "width": 1
                  },
                  "width": null
                },
                "open": {
                  "x": "",
                  "y": ""
                }
              },
              "data": {
                "source": "dataset",
                "x": "time",
                "y": "good"
              },
              "defaultState": {
                "visible": true
              },
              "hiddenInLegend": false,
              "label": {
                "text": ""
              },
              "line": {
                "appearance": {
                  "bullets": [
                    {
                      "deriveFieldsFromData": {
                        "fill": {
                          "color": "",
                          "opacity": ""
                        },
                        "rotation": "",
                        "stroke": {
                          "color": "",
                          "opacity": "",
                          "width": ""
                        }
                      },
                      "enabled": false,
                      "fill": {
                        "color": "",
                        "opacity": 1
                      },
                      "heatRules": {
                        "dataField": "",
                        "enabled": false,
                        "max": 100,
                        "min": 2
                      },
                      "height": 10,
                      "label": {
                        "position": {
                          "dx": 0,
                          "dy": 0
                        },
                        "text": "{value}"
                      },
                      "render": "circle",
                      "rotation": 0,
                      "stroke": {
                        "color": "",
                        "opacity": 1,
                        "width": 1
                      },
                      "tooltip": {
                        "background": {
                          "color": "",
                          "opacity": 1
                        },
                        "cornerRadius": 3,
                        "enabled": true,
                        "pointerLength": 4,
                        "text": "{name}: [bold]{valueY}[/]"
                      },
                      "width": 10
                    }
                  ],
                  "connect": true,
                  "fill": {
                    "color": "",
                    "opacity": 0
                  },
                  "minDistance": 0.5,
                  "stroke": {
                    "color": "",
                    "dashArray": "",
                    "opacity": 1,
                    "width": 3
                  },
                  "tensionX": 1,
                  "tensionY": 1
                },
                "open": {
                  "x": "",
                  "y": ""
                }
              },
              "name": "Good Parts",
              "render": "column",
              "stepLine": {
                "appearance": {
                  "bullets": [
                    {
                      "deriveFieldsFromData": {
                        "fill": {
                          "color": "",
                          "opacity": ""
                        },
                        "rotation": "",
                        "stroke": {
                          "color": "",
                          "opacity": "",
                          "width": ""
                        }
                      },
                      "enabled": true,
                      "fill": {
                        "color": "",
                        "opacity": 1
                      },
                      "heatRules": {
                        "dataField": "",
                        "enabled": false,
                        "max": 100,
                        "min": 2
                      },
                      "height": 10,
                      "label": {
                        "position": {
                          "dx": 0,
                          "dy": 0
                        },
                        "text": "{value}"
                      },
                      "render": "circle",
                      "rotation": 0,
                      "stroke": {
                        "color": "",
                        "opacity": 1,
                        "width": 1
                      },
                      "tooltip": {
                        "background": {
                          "color": "",
                          "opacity": 1
                        },
                        "cornerRadius": 3,
                        "enabled": true,
                        "pointerLength": 4,
                        "text": "{name}: [bold]{valueY}[/]"
                      },
                      "width": 10
                    }
                  ],
                  "connect": true,
                  "fill": {
                    "color": "",
                    "opacity": 0
                  },
                  "minDistance": 0.5,
                  "stroke": {
                    "color": "",
                    "dashArray": "",
                    "opacity": 1,
                    "width": 3
                  },
                  "tensionX": 1,
                  "tensionY": 1
                },
                "open": {
                  "x": "",
                  "y": ""
                }
              },
              "tooltip": {
                "background": {
                  "color": "",
                  "opacity": 1
                },
                "cornerRadius": 3,
                "enabled": true,
                "pointerLength": 4,
                "text": "{name}: [bold]{valueY}[/]"
              },
              "visible": true,
              "xAxis": "time",
              "yAxis": "good",
              "zIndex": 0
            },
            {
              "candlestick": {
                "appearance": {
                  "deriveFieldsFromData": {
                    "fill": {
                      "color": "",
                      "opacity": ""
                    },
                    "stroke": {
                      "color": "",
                      "opacity": "",
                      "width": ""
                    }
                  },
                  "fill": {
                    "color": "",
                    "opacity": 1
                  },
                  "heatRules": {
                    "dataField": "",
                    "enabled": false,
                    "max": "",
                    "min": ""
                  },
                  "stacked": false,
                  "stroke": {
                    "color": "",
                    "opacity": 1,
                    "width": 1
                  }
                },
                "high": {
                  "x": "",
                  "y": ""
                },
                "low": {
                  "x": "",
                  "y": ""
                },
                "open": {
                  "x": "",
                  "y": ""
                }
              },
              "column": {
                "appearance": {
                  "deriveFieldsFromData": {
                    "fill": {
                      "color": "",
                      "opacity": ""
                    },
                    "stroke": {
                      "color": "",
                      "opacity": "",
                      "width": ""
                    }
                  },
                  "fill": {
                    "color": "",
                    "opacity": 1
                  },
                  "heatRules": {
                    "dataField": "",
                    "enabled": false,
                    "max": "",
                    "min": ""
                  },
                  "height": null,
                  "stacked": false,
                  "stroke": {
                    "color": "",
                    "opacity": 1,
                    "width": 1
                  },
                  "width": null
                },
                "open": {
                  "x": "",
                  "y": ""
                }
              },
              "data": {
                "source": "dataset",
                "x": "time",
                "y": "total_rejects"
              },
              "defaultState": {
                "visible": true
              },
              "hiddenInLegend": false,
              "label": {
                "text": ""
              },
              "line": {
                "appearance": {
                  "bullets": [
                    {
                      "deriveFieldsFromData": {
                        "fill": {
                          "color": "",
                          "opacity": ""
                        },
                        "rotation": "",
                        "stroke": {
                          "color": "",
                          "opacity": "",
                          "width": ""
                        }
                      },
                      "enabled": false,
                      "fill": {
                        "color": "",
                        "opacity": 1
                      },
                      "heatRules": {
                        "dataField": "",
                        "enabled": false,
                        "max": 100,
                        "min": 2
                      },
                      "height": 10,
                      "label": {
                        "position": {
                          "dx": 0,
                          "dy": 0
                        },
                        "text": "{value}"
                      },
                      "render": "circle",
                      "rotation": 0,
                      "stroke": {
                        "color": "",
                        "opacity": 1,
                        "width": 1
                      },
                      "tooltip": {
                        "background": {
                          "color": "",
                          "opacity": 1
                        },
                        "cornerRadius": 3,
                        "enabled": true,
                        "pointerLength": 4,
                        "text": "{name}: [bold]{valueY}[/]"
                      },
                      "width": 10
                    }
                  ],
                  "connect": true,
                  "fill": {
                    "color": "",
                    "opacity": 0
                  },
                  "minDistance": 0.5,
                  "stroke": {
                    "color": "#000000",
                    "dashArray": "",
                    "opacity": 1,
                    "width": 3
                  },
                  "tensionX": 1,
                  "tensionY": 1
                },
                "open": {
                  "x": "",
                  "y": ""
                }
              },
              "name": "Total Rejects",
              "render": "line",
              "stepLine": {
                "appearance": {
                  "bullets": [
                    {
                      "deriveFieldsFromData": {
                        "fill": {
                          "color": "",
                          "opacity": ""
                        },
                        "rotation": "",
                        "stroke": {
                          "color": "",
                          "opacity": "",
                          "width": ""
                        }
                      },
                      "enabled": true,
                      "fill": {
                        "color": "",
                        "opacity": 1
                      },
                      "heatRules": {
                        "dataField": "",
                        "enabled": false,
                        "max": 100,
                        "min": 2
                      },
                      "height": 10,
                      "label": {
                        "position": {
                          "dx": 0,
                          "dy": 0
                        },
                        "text": "{value}"
                      },
                      "render": "circle",
                      "rotation": 0,
                      "stroke": {
                        "color": "",
                        "opacity": 1,
                        "width": 1
                      },
                      "tooltip": {
                        "background": {
                          "color": "",
                          "opacity": 1
                        },
                        "cornerRadius": 3,
                        "enabled": true,
                        "pointerLength": 4,
                        "text": "{name}: [bold]{valueY}[/]"
                      },
                      "width": 10
                    }
                  ],
                  "connect": true,
                  "fill": {
                    "color": "",
                    "opacity": 0
                  },
                  "minDistance": 0.5,
                  "stroke": {
                    "color": "",
                    "dashArray": "",
                    "opacity": 1,
                    "width": 3
                  },
                  "tensionX": 1,
                  "tensionY": 1
                },
                "open": {
                  "x": "",
                  "y": ""
                }
              },
              "tooltip": {
                "background": {
                  "color": "",
                  "opacity": 1
                },
                "cornerRadius": 3,
                "enabled": true,
                "pointerLength": 4,
                "text": "{name}: [bold]{valueY}[/]"
              },
              "visible": true,
              "xAxis": "time",
              "yAxis": "good",
              "zIndex": 0
            }
          ],
          "style": {
            "classes": "Text_Scaling",
            "marginLeft": 5,
            "marginRight": 5,
            "outlineStyle": "solid"
          },
          "subtitle": {
            "appearance": {
              "color": "#000000",
              "font": {
                "weight": 700
              },
              "padding": {
                "bottom": 10
              }
            },
            "text": "Target Good Parts \u003d 331 per Half Hour"
          },
          "title": {
            "appearance": {
              "color": "#000000"
            },
            "text": "Good \u0026 Total Rejects"
          },
          "xAxes": [
            {
              "appearance": {
                "font": {
                  "size": "",
                  "weight": 500
                },
                "grid": {
                  "color": "#000000",
                  "dashArray": "",
                  "minDistance": 15,
                  "opacity": 1,
                  "position": 0.1
                },
                "inside": false,
                "labels": {
                  "color": "",
                  "horizontalCenter": "middle",
                  "opacity": 1,
                  "rotation": 270,
                  "verticalCenter": "middle"
                },
                "opposite": false
              },
              "category": {
                "break": {
                  "enabled": false,
                  "endCategory": "",
                  "size": 0.05,
                  "startCategory": ""
                }
              },
              "date": {
                "baseInterval": {
                  "count": 1,
                  "enabled": false,
                  "skipEmptyPeriods": false,
                  "timeUnit": "hour"
                },
                "break": {
                  "enabled": false,
                  "endDate": "",
                  "size": 0.05,
                  "startDate": ""
                },
                "format": "M/d/yyyy HH:mm:ss",
                "inputFormat": "M/d/yyyy HH:mm:ss",
                "range": {
                  "max": "",
                  "min": "",
                  "useStrict": true
                }
              },
              "inversed": false,
              "label": {
                "color": "#000000",
                "enabled": false,
                "text": "Time"
              },
              "name": "time",
              "render": "category",
              "tooltip": {
                "background": {
                  "color": "",
                  "opacity": 1
                },
                "cornerRadius": 3,
                "enabled": true,
                "pointerLength": 4,
                "text": ""
              },
              "value": {
                "break": {
                  "enabled": false,
                  "endValue": 100,
                  "size": 0.05,
                  "startValue": 0
                },
                "format": "#,###.##",
                "logarithmic": false,
                "range": {
                  "max": "",
                  "min": "",
                  "useStrict": false
                }
              },
              "visible": true
            }
          ],
          "yAxes": [
            {
              "appearance": {
                "font": {
                  "size": "",
                  "weight": 500
                },
                "grid": {
                  "color": "",
                  "dashArray": "",
                  "minDistance": null,
                  "opacity": 1,
                  "position": 0.5
                },
                "inside": false,
                "labels": {
                  "color": "",
                  "horizontalCenter": "middle",
                  "opacity": 1,
                  "rotation": 0,
                  "verticalCenter": "middle"
                },
                "opposite": false
              },
              "category": {
                "break": {
                  "enabled": false,
                  "endCategory": "",
                  "size": 0.05,
                  "startCategory": ""
                }
              },
              "date": {
                "baseInterval": {
                  "count": 1,
                  "enabled": false,
                  "skipEmptyPeriods": false,
                  "timeUnit": "hour"
                },
                "break": {
                  "enabled": false,
                  "endDate": "",
                  "size": 0.05,
                  "startDate": ""
                },
                "format": "M/d/yyyy HH:mm:ss",
                "inputFormat": "yyyy-MM-dd kk:mm:ss",
                "range": {
                  "max": "",
                  "min": "",
                  "useStrict": false
                }
              },
              "inversed": false,
              "label": {
                "color": "#000000",
                "enabled": false,
                "text": "Good Parts"
              },
              "name": "good",
              "render": "value",
              "tooltip": {
                "background": {
                  "color": "",
                  "opacity": 1
                },
                "cornerRadius": 3,
                "enabled": true,
                "pointerLength": 4,
                "text": ""
              },
              "value": {
                "break": {
                  "enabled": false,
                  "endValue": 100,
                  "size": 0.05,
                  "startValue": 0
                },
                "format": "#,###.##",
                "logarithmic": false,
                "range": {
                  "min": 0,
                  "useStrict": false
                }
              },
              "visible": true
            },
            {
              "appearance": {
                "font": {
                  "size": "",
                  "weight": 500
                },
                "grid": {
                  "color": "",
                  "dashArray": "",
                  "minDistance": null,
                  "opacity": 1,
                  "position": 0.5
                },
                "inside": false,
                "labels": {
                  "color": "",
                  "horizontalCenter": "middle",
                  "opacity": 1,
                  "rotation": 0,
                  "verticalCenter": "middle"
                },
                "opposite": false
              },
              "category": {
                "break": {
                  "enabled": false,
                  "endCategory": "",
                  "size": 0.05,
                  "startCategory": ""
                }
              },
              "date": {
                "baseInterval": {
                  "count": 1,
                  "enabled": false,
                  "skipEmptyPeriods": false,
                  "timeUnit": "hour"
                },
                "break": {
                  "enabled": false,
                  "endDate": "",
                  "size": 0.05,
                  "startDate": ""
                },
                "format": "M/d/yyyy HH:mm:ss",
                "inputFormat": "yyyy-MM-dd kk:mm:ss",
                "range": {
                  "max": "",
                  "min": "",
                  "useStrict": false
                }
              },
              "inversed": false,
              "label": {
                "color": "#000000",
                "enabled": true,
                "text": "Reject Parts"
              },
              "name": "total_rejects",
              "render": "category",
              "tooltip": {
                "background": {
                  "color": "",
                  "opacity": 1
                },
                "cornerRadius": 3,
                "enabled": true,
                "pointerLength": 4,
                "text": ""
              },
              "value": {
                "break": {
                  "enabled": false,
                  "endValue": 100,
                  "size": 0.05,
                  "startValue": 0
                },
                "format": "#,###.##",
                "logarithmic": false,
                "range": {
                  "max": "",
                  "min": "",
                  "useStrict": false
                }
              },
              "visible": true
            }
          ]
        },
        "type": "ia.chart.xy"
      }
    ],
    "meta": {
      "name": "root"
    },
    "position": {
      "x": 0,
      "y": 0
    },
    "type": "ia.container.coord"
  }
}

You have an expression binding there. Delete that, too.

Yep, didn't notice that one until after I sent, sorry.

{
  "custom": {},
  "params": {},
  "props": {},
  "root": {
    "children": [
      {
        "meta": {
          "name": "xy_chart"
        },
        "position": {
          "height": 416,
          "width": 770
        },
        "props": {
          "dataSources": {
            "dataset": {
              "$": [
                "ds",
                192,
                1749055392838
              ],
              "$columns": [
                {
                  "data": [
                    1749011400000,
                    1749013200000,
                    1749015000000,
                    1749016800000,
                    1749018600000,
                    1749020400000,
                    1749022200000,
                    1749024000000,
                    1749025800000,
                    1749027600000,
                    1749029400000,
                    1749031200000,
                    1749033000000,
                    1749034800000,
                    1749036600000,
                    1749038400000,
                    1749040200000,
                    1749042000000,
                    1749043800000,
                    1749045600000,
                    1749047400000,
                    1749049200000,
                    1749051000000,
                    1749052800000
                  ],
                  "name": "time",
                  "type": "Date"
                },
                {
                  "data": [
                    372,
                    376,
                    376,
                    372,
                    372,
                    376,
                    376,
                    372,
                    376,
                    372,
                    376,
                    372,
                    372,
                    376,
                    376,
                    368,
                    324,
                    376,
                    372,
                    376,
                    372,
                    376,
                    372,
                    372
                  ],
                  "name": "good",
                  "type": "Short"
                },
                {
                  "data": [
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    0,
                    32,
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Hmmm. Stumped.

Well, that can't be good! I'll put in a ticket with the same info. Thank you for taking a look!

If you are rendering the x-axis as date, try disabling xAxis[0].date.range.useStrict

When I have it render as date is when I get the top screenshot whether using strict or not. IE it does output in good datetime format but I get the offset as shown (which is one too many labels because for some reason I lose a column). I just tried again and getting the same results. I do have a conversation going with an IA engineer right now though. Once an issue is identified and hopefully resolved I will update here as well (most likely with where I went wrong). Thanks!

FWIW, I got the same results as you with v8.1.45. And I also tried both strict settings.

Very strange... tested it in 8.1.43 (Standard) and 8.1.47 (Cloud) and Disabling useStrict seems to add the extra column.

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Given that date is a range, rendering as date always puts an interval tick at each end of your chart, rather than one for each data point, If you want your columns centered on ticks, would you not just pre-format your times as date strings (MM/dd/yyyy HH:mm) using a transform and render as category?

1 Like

Excellent suggestion.
I changed my query to cast the DB datetime field into char and all is well. I added some formatting to it as well to get the string looking like I want and this is the result, with the correct number of columns & labels and all aligning.

Not sure why this works, but if there is documentation where I could have found it I would find that useful to learn from.

Thanks!

1 Like

The gotcha to doing your own date formatting is that it will use the gateway's timezone or your DB's timezone unless you take extra care.

I'll look into ways to watch for and/or mitigate that issue, but I'm assuming (for now) because our system is all under one roof it shouldn't be much of a concern as long as the gateway and DB (which live on the same machine) get their time source from the same place?

1 Like