9.1.5 Zooming (Python)

These functions control the overall zooming of the picture (see Zoom()) or the sub-picture (see PlotFactor). Normally you can use these variables and functions for removing “white” spaces around a plot.

Method on mglGraph (Python): void SetPlotFactor (float val)

Sets the factor of plot size. It is not recommended to set it lower then 1.6. This is some anlogue of function Zoom() but applied not to overall image but for each InPlot. Use negative value to enable automatic PlotFactor selection.

Method on mglGraph (Python): void Zoom (float x1, float y1, float x2, float y2)

Changes the scale of graphics that correspond to zoom in/out of the picture. After function call the current plot will be cleared and further the picture will contain plotting from its part [x1,x2]*[y1,y2]. Here picture coordinates x1, x2, y1, y2 changes from 0 to 1. Attention! this settings can not be overwritten by any other functions. Use Zoom(0,0,1,1) to return default view.