This is a HeatMap example of vdWebControl

Description

In this sample we create two heatmaps,the first base heatmap and the second action draw heatmap. The first heatmap is created on afterOpenDocument and shown on the canvas. Use the right panel to customize the rectangle levels and colors, then click REDRAW to update.

Note that the base rectangle has Z value = 0 and this value is used to recognize the color of every level,so we have set by defaul when the value is [0] the color will be [0,50,255]
The first level rectangle has Z value = 2 and when the value is [2] the color will be [80,255,0].
The second level rectangle has Z value = 4 and when the value is [4] the color will be [255,200,0].
The top level has Z value = 5 and when the value is [5] the color will be [255,0,0].
NOTE that the Z value can be used to show an altidute like the example that we have created,but also it can be used to show a temperature value on a surface.
So by using the X,Y values for the location of an object and the Z value for the temperature we can create a heatmap which will show the temperature plan of a surface.