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TTMSFNCLeaflet.HeatMaps Property

Provides the heat map collection.

API unit family: TMSFNCLeaflet Declaring type: TTMSFNCLeaflet Inherited from: TTMSFNCCustomLeaflet Type: TTMSFNCLeafletHeatMaps

Syntax

FMX.TMSFNCLeaflet.hppPascalC++
property HeatMaps: TTMSFNCLeafletHeatMaps;

__property TTMSFNCLeafletHeatMaps* HeatMaps = {read=GetHeatMaps, write=SetHeatMaps};

Usage examples

Add a Leaflet heat map

Populates a HeatMaps layer with weighted coordinates and gradient colors.

Add a Leaflet heat mapPascalC++
procedure TForm1.ConfigureLeafletHeatMap;
var
  LHeatMap: TTMSFNCLeafletHeatMap;
  LWeightedCoordinate: TTMSFNCMapsWeightedCoordinate;
begin
  TMSFNCLeaflet1.HeatMaps.Clear;

  LHeatMap := TMSFNCLeaflet1.HeatMaps.Add;
  LHeatMap.Opacity := 0.6;
  LHeatMap.GradientStartColor := gcGreen;
  LHeatMap.GradientMidColor := gcYellow;
  LHeatMap.GradientEndColor := gcRed;

  LWeightedCoordinate := LHeatMap.WeightedCoordinates.Add;
  LWeightedCoordinate.Coordinate.Latitude := 51.5074;
  LWeightedCoordinate.Coordinate.Longitude := -0.1278;
  LWeightedCoordinate.Weight := 0.9;

  LWeightedCoordinate := LHeatMap.WeightedCoordinates.Add;
  LWeightedCoordinate.Coordinate.Latitude := 51.5155;
  LWeightedCoordinate.Coordinate.Longitude := -0.1419;
  LWeightedCoordinate.Weight := 0.6;
end;

void __fastcall TForm1::ConfigureLeafletHeatMap()
{
  TMSFNCLeaflet1->HeatMaps->Clear();

  TTMSFNCLeafletHeatMap *LHeatMap = TMSFNCLeaflet1->HeatMaps->Add();
  LHeatMap->Opacity = 0.6;
  LHeatMap->GradientStartColor = gcGreen;
  LHeatMap->GradientMidColor = gcYellow;
  LHeatMap->GradientEndColor = gcRed;

  TTMSFNCMapsWeightedCoordinate *LWeightedCoordinate = LHeatMap->WeightedCoordinates->Add();
  LWeightedCoordinate->Coordinate->Latitude = 51.5074;
  LWeightedCoordinate->Coordinate->Longitude = -0.1278;
  LWeightedCoordinate->Weight = 0.9;

  LWeightedCoordinate = LHeatMap->WeightedCoordinates->Add();
  LWeightedCoordinate->Coordinate->Latitude = 51.5155;
  LWeightedCoordinate->Coordinate->Longitude = -0.1419;
  LWeightedCoordinate->Weight = 0.6;
}

Read the related guide