Heatmap Chart
lowcodera Heatmap component
Purpose
A heatmap contains values representing various shades of the same colour for each value to be plotted. Usually the darker shades of the chart represent higher values than the lighter shade.
Variations
There are several variations of Heatmap charts which are supported through the configuration of data and component properties.
Basic Heatmap Chart
Heatmap with multiple series
Heatmap with Ranges
Working with Data
The data format for the Heatmap chart is the same as for other Lowcodera charts. You can bind your chart component's items property to a Power Apps collection which includes either static data or dynamic data e.g. SharePoint.
In this example, a collection with static data called colheatmapsinglecoloris defined in the Power App. The items property of the heatmap chart component is then bound to this collection.
Table(
{
name: "Population",
color: "#49b689",
data: [
{
label: "Project Alpha",
value: 115
},
{
label: "Project Beta",
value: 150
},
{
label: "Project Gamma",
value: 180
},
{
label: "Project Delta",
value: 30
},
{
label: "Project Epsilon",
value: 110
},
{
label: "Project Zeta",
value: 251
},
{
label: "Project Eta",
value: 90
},
{
label: "Project Theta",
value: 145
},
{
label: "Project Iota",
value: 120
},
{
label: "Project Kappa",
value: 80
}
]
},
{
name: "Education",
data: [
{
label: "Project Alpha",
value: 142
},
{
label: "Project Beta",
value: 100
},
{
label: "Project Gamma",
value: 85
},
{
label: "Project Delta",
value: 120
},
{
label: "Project Epsilon",
value: 170
},
{
label: "Project Zeta",
value: 75
},
{
label: "Project Eta",
value: 45
},
{
label: "Project Theta",
value: 117
},
{
label: "Project Iota",
value: 60
},
{
label: "Project Kappa",
value: 141
}
]
},
{
name: "Income",
data: [
{
label: "Project Alpha",
value: 15
},
{
label: "Project Beta",
value: 150
},
{
label: "Project Gamma",
value: 180
},
{
label: "Project Delta",
value: 25
},
{
label: "Project Epsilon",
value: 190
},
{
label: "Project Zeta",
value: 85
},
{
label: "Project Eta",
value: 47
},
{
label: "Project Theta",
value: 150
},
{
label: "Project Iota",
value: 152
},
{
label: "Project Kappa",
value: 41
}
]
}
)
The above code snippet will generate the following Heatmap chart.
The below example represents, Dataverse table's data in a dynamic manner. The dataverse table structure looks like below:
The below code snippet will generate dynamic collection to be consumed by component.
ClearCollect(
CategoryCol,
Distinct(
Budgets,
Category
)
);
Clear(ItemCategoryCol);
ForAll(
CategoryCol,
Collect(
ItemCategoryCol,
{
ItemCategory: ThisRecord.Result,
ItemColor:First(Filter(Budgets,Category=Result)).Color
}
)
);
Clear(colheatmapsinglecolor);
ForAll(
ItemCategoryCol,
Collect(
colheatmapsinglecolor,
{
name: ThisRecord.ItemCategory,
color:ItemColor,
data: ForAll(
Filter(
Budgets,
Category = ItemCategory
),
{
Value: {
label: ThisRecord.Name,
value: ThisRecord.Value
}
}
)
}
)
);All control properties can be left as default
Chart Properties
For a full listing of all chart properties see the chart components property reference
The properties below are the main ones which change this components appearance and behaviours.
Property | Description | Required | Accepted Values |
DataLabelSymbol | Property to add any symbol (eg. currency or any appened words) along with data labels | X | Text |
Radius | Property to set the Radius for heat map | X | Numeric (ranges from 0 to 70) |
Examples
Heatmap Chart with Multiple Series
A single or multiple data series is defined in the collection.
ClearCollect(
heatmapbasicsseries,
{
name: "Population",
data: [
{
label: "Project Alpha",
value: 115
},
{
label: "Project Beta",
value: 50
},
{
label: "Praject Gamma",
value: 80
},
{
label: "Praject Delta",
value: 30
},
{
label: "Praject Epsilon",
value: 10
},
{
label: "Praject Zeta",
value: 25
},
{
label: "Praject Eta",
value: 90
},
{
label: "Praject Theta",
value: 145
},
{
label: "Praject Iota",
value: 120
},
{
label: "Praject Kappa",
value: 80
}
]
},
{
name: "Education",
data: [
{
label: "Project Alpha",
value: 42
},
{
label: "Project Beta",
value: 100
},
{
label: "Praject Gamma",
value: 85
},
{
label: "Praject Delta",
value: 120
},
{
label: "Praject Epsilon",
value: 70
},
{
label: "Praject Zeta",
value: 75
},
{
label: "Praject Eta",
value: 45
},
{
label: "Praject Theta",
value: 17
},
{
label: "Praject Iota",
value: 60
},
{
label: "Praject Kappa",
value: 41
}
]
},
{
name: "Income",
data: [
{
label: "Project Alpha",
value: 15
},
{
label: "Project Beta",
value: 150
},
{
label: "Praject Gamma",
value: 180
},
{
label: "Praject Delta",
value: 25
},
{
label: "Praject Epsilon",
value: 90
},
{
label: "Praject Zeta",
value: 85
},
{
label: "Praject Eta",
value: 47
},
{
label: "Praject Theta",
value: 50
},
{
label: "Praject Iota",
value: 52
},
{
label: "Praject Kappa",
value: 41
}
]
}
);
Heatmap Chart with Range
A single or multiple data series is defined in the collection.
ClearCollect(
heatmapWithColorRange,
{
name: "Population",
colorRange: [
{
from: 0,
to: 50,
color: "#8ef19a"
},
{
from: 51,
to: 100,
color: "#a370f5"
},
{
from: 101,
to: 200,
color: "#f6756f"
}
],
data: [
{
label: "Project Alpha",
value: 115
},
{
label: "Project Beta",
value: 50
},
{
label: "Praject Gamma",
value: 80
},
{
label: "Praject Delta",
value: 30
},
{
label: "Praject Epsilon",
value: 10
},
{
label: "Praject Zeta",
value: 25
},
{
label: "Praject Eta",
value: 90
},
{
label: "Praject Theta",
value: 145
},
{
label: "Praject Iota",
value: 120
},
{
label: "Praject Kappa",
value: 80
}
]
},
{
name: "Education",
data: [
{
label: "Project Alpha",
value: 42
},
{
label: "Project Beta",
value: 100
},
{
label: "Praject Gamma",
value: 85
},
{
label: "Praject Delta",
value: 120
},
{
label: "Praject Epsilon",
value: 70
},
{
label: "Praject Zeta",
value: 75
},
{
label: "Praject Eta",
value: 45
},
{
label: "Praject Theta",
value: 17
},
{
label: "Praject Iota",
value: 60
},
{
label: "Praject Kappa",
value: 41
}
]
},
{
name: "Income",
data: [
{
label: "Project Alpha",
value: 15
},
{
label: "Project Beta",
value: 150
},
{
label: "Praject Gamma",
value: 180
},
{
label: "Praject Delta",
value: 25
},
{
label: "Praject Epsilon",
value: 90
},
{
label: "Praject Zeta",
value: 85
},
{
label: "Praject Eta",
value: 47
},
{
label: "Praject Theta",
value: 50
},
{
label: "Praject Iota",
value: 52
},
{
label: "Praject Kappa",
value: 41
}
]
}
);
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