The use of GDI drawing in winform waveform figure is based on pixel point? It means that if you don't use rolling level can only draw less than 2000 points? that drew 500 points to half the width of the screen, I draw a line in the abscissa DrawLine function when a point is a point next to each other, could you tell me how to draw more points,,
But I see native chart control can display more than 3000 points, I want to ask next GDI should how

CodePudding user response:

Know,,, you can use ScaleTransform method

CodePudding user response:

You can use a ScaleTransform method

CodePudding user response:

Scale, the actual coordinates and the screen coordinate transformation algorithm, certainly not 1:1, otherwise would not have to show the map

CodePudding user response:

reference qq1277874734 reply: 3/f

scale, actual coordinates and the screen coordinate transformation algorithm, and certainly not 1:1, otherwise would not have to show the map

just contact, after stick only to find that this method