Efficient generation of high-density graphics

Question

Gabriel Stanley 2022-9-26

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1812030-efficient-generation-of-high-density-graphics

编辑： Gabriel Stanley 2022-9-26

I have a two large arrays that I wish to graph (for each interation of a loop within a function, so there will be alot of these pairs). In order to minimize the time the overall function takes to execute, I would like to know how to implement the following best practices:

How can I stop MatLab from plotting occluded elements/lines in a 2x1 surface plot?
How might I go about reducing the data that is fed into the surface plot so that I avoid "creating straight lines with mutiple data points"? Is this practice even relevant to surface plots?
For my specific use case, I'm trying to create 4 views of the 2x1 surface object. How do (and/or should I) prevent MatLab from drawing the object (which I assume takes the most time) until all 4 views are setup?
As an addendum to (3), which of subplot and tiledlayout do you think is better for this task?

Finally, can someone explain why this

SurfaceFigure = figure()
SurfaceLayout - tiledlayout(SurfaceFigure,2,2,'Padding','compact');
axesTop = nextile(1);
xlabel(axesTop,'Data Label 1'); ylabel(axesTop,'Data Label 2'); zlabel(axesTop,'Data Label 3');
axis(axesTop,'tight'); view(axesTop,0,90)
surface(XData,YData,ZData1,'FaceColor','k','EdgeColor','none');
surface(XData,YData,ZData2,'FaceColor','y','EdgeColor','none');
axesIso = nextile(2);
xlabel(axesIso,'Data Label 1'); ylabel(axesIso,'Data Label 2'); zlabel(axesIso,'Data Label 3');
axis(axesIso,'tight'); view(axesIso,-45,45)
surface(XData,YData,ZData1,'FaceColor','k','EdgeColor','none');
surface(XData,YData,ZData2,'FaceColor','y','EdgeColor','none');
axesFront = nextile(3);
xlabel(axesFront,'Data Label 1'); ylabel(axesFront,'Data Label 2'); zlabel(axesFront,'Data Label 3');
axis(axesFront,'tight'); view(axesFront,90,0)
surface(XData,YData,ZData1,'FaceColor','k','EdgeColor','none');
surface(XData,YData,ZData2,'FaceColor','y','EdgeColor','none');
axesRight = nextile(4);
xlabel(axesRight,'Data Label 1'); ylabel(axesRight,'Data Label 2'); zlabel(axesRight,'Data Label 3');
axis(axesRight,'tight'); view(axesRight,0,0)
surface(XData,YData,ZData1,'FaceColor','k','EdgeColor','none');
surface(XData,YData,ZData2,'FaceColor','y','EdgeColor','none');

is taking a shade under a minute while this

SurfaceFigure = figure()
SurfaceLayout - tiledlayout(SurfaceFigure,2,2,'Padding','compact');
axesTop = nextile(1);
xlabel('Data Label 1'); ylabel('Data Label 2'); zlabel('Data Label 3'); axis tight; view(0,90)
Surface1 = surface(XData,YData,ZData1,'FaceColor','k','EdgeColor','none');
Surface2 = surface(XData,YData,ZData2,'FaceColor','y','EdgeColor','none');
Surfaces = [Surface1,Surface2];
tic
axesIso = nextile(2);
copyobj(Surfaces,axesIso);
toc

is taking ~612 seconds?

Once I have the visuals figured out, I will set the initial figure visibility to off and use getframe if possible, otherwise saveas or print to export the figure to a png.