Using Qt to display a interactive heatmap

[Santosh Reddy]

I don't fully understand your requirement, but QGraphicsView is a nice place to start with

[chrisb123]

OK dont worry about the interactive part I can always just redraw it

Ill put it this way

I have some points scattered roughly in a grid pattern on a 2d plane
The value range from 0 to 100
The 2d plane goes from -100 to 100 on both x and y axis

Point 50,50 is value 100
Point -50,-50 is value 0

Obviously points between these points go from 0 to 50

Now If I add 0,0 to be 25
Now the points inbetween are different it starts at 0 and goes to 25 in the center then to 100

Now I want to add point 0,25 and put in the value 75

Around -20,-30 the value is 75
The points approaching 50,50 from here are influenced by the 0,0 point of 25 so it could be about 30 near here

Now I want to get the value of all points in the grid based on this

What I'm looking for is probably more math but some function that can do this