Overlay contour and line plot

2015 1 19
1 个回答
更新时间：2015 1 20
5 次查看（30 天）

0 个投票

Hi Folks, I've got a 2D contour plot (x,y,z) and I want to overlay a line plot (x,y). The two graphs share the same x values. The hold on functions don't seem to help much. Any pointers?
fig1 = figure(1);
hFig = contour(gEmiFreq,gAbsFreq,MAmpl,c0.*SFac,...
'LineStyle','-','LineWidth',CntlineW);
line(DiagnlLine(1,:), DiagnlLine(2,:), 'LineStyle', '-', 'Color', [0 0 0],'LineWidth',LineW+.5);
axis(AxisDim);
caxis([0 1]);
set(gca,'xtickMode', 'manual', 'ytickMode', 'manual','LineWidth',2);
axis square; colormap jet;% colorbar;
hold on
plot(gEmiFreq(1,:),NormRef);
Normref is a 1x1024 laser spectrum and MAmpl,gEmiFreq, and gAbsFreq are 76x1024 arrays

请先登录，再回答此问题。

回答（1 个）

Star Strider
Star Strider 2015-1-19

0 个投票

I don’t know what the problem is, since what you describe should work. You didn’t post your code, so I can’t respond with a specific solution.
See 2D Filled Colour Plot for my previous (Accepted!) solution to a similar problem.

9 个评论
显示 7更早的评论 隐藏 7更早的评论

Star Strider
Star Strider 2015-1-19
I don’t have your data, so I can’t run your code.
See if rearranging your code to put the hold calls in a different order solves your problem:
fig1 = figure(1);
hFig = contour(gEmiFreq,gAbsFreq,MAmpl,c0.*SFac,...
'LineStyle','-','LineWidth',CntlineW);
hold on
line(DiagnlLine(1,:), DiagnlLine(2,:), 'LineStyle', '-', 'Color', [0 0 0],'LineWidth',LineW+.5);
plot(gEmiFreq,NormRef);
hold off
axis(AxisDim);
caxis([0 1]);
set(gca,'xtickMode', 'manual', 'ytickMode', 'manual','LineWidth',2);
axis square; colormap jet;% colorbar;
Image Analyst
Image Analyst 2015-1-19
Can you demo with something standard, like the peaks() image?
Brian
Brian 2015-1-19
编辑：Brian 2015-1-20
Yes, I hope this is more understandable! I tried moving the hold calls around, and it would do things switch which plot I saw but not overlay
clear all
NRow = 5; NCol = 5;
c0 = (0:.02:1);
MDim(1:4) = [[1475.40680000000,1511.70650000000,-1510.92820000000,-1475.06230000000;]];
[gEmiFreq, gAbsFreq] = meshgrid( linspace( MDim(1), MDim(2), NCol),... linspace( MDim(3), MDim(4), NRow) ); MAmpl0 = abs(peaks(5)); MAmpl = MAmpl0/max(max(MAmpl0)) laser = [0 .5 1 .5 0]; fig1 = figure(1); hold on hFig = contour(gEmiFreq,gAbsFreq,MAmpl,c0);
caxis([0 1]); set(gca,'xtickMode', 'manual', 'ytickMode', 'manual','LineWidth',2); axis square; colormap jet;% colorbar; plot(gEmiFreq(1,:),laser);
Star Strider
Star Strider 2015-1-19
I have no idea. I cannot run your code, so I can only wish you luck.
Brian
Brian 2015-1-20
Thanks Star Strider, this is my first time using a forum and I forgot to clear the memory when I was making the dummy code. Anyway, this guy should execute. Thank you for sticking around!
Star Strider
Star Strider 2015-1-20
My pleasure!
Is your problem solved?
Brian
Brian 2015-1-20
Unfortunately no, the issue is that I don't see the second plot overlayed on the contour plot.
Brian
Brian 2015-1-20
working test code:
clear all
NRow = 5; NCol = 5;
c0 = (0:.02:1);
MDim(1:4) = [[1475.40680000000,1511.70650000000,-1510.92820000000,-1475.06230000000;]];
[gEmiFreq, gAbsFreq] = meshgrid( linspace( MDim(1), MDim(2), NCol),...
linspace( MDim(3), MDim(4), NRow) );
MAmpl0 = abs(peaks(5));
MAmpl = MAmpl0/max(max(MAmpl0))
laser = [0 .5 1 .5 0];
fig1 = figure(1);
hold on
hFig = contour(gEmiFreq,gAbsFreq,MAmpl,c0);
caxis([0 1]);
set(gca,'xtickMode', 'manual', 'ytickMode', 'manual','LineWidth',2);
axis square; colormap jet;% colorbar;
plot(gEmiFreq(1,:),laser);
Star Strider
Star Strider 2015-1-20
You probably won’t be able to overlay it on the contour plot, unless you use something like plotyy. The reason is that the y values are so different. Experiment with that to see if it solves your problem.

请先登录，再进行评论。

类别

在 帮助中心 和 File Exchange 中查找有关 Contour Plots 的更多信息

标签

提问:

Brian
Brian
2015-1-19

评论：

Star Strider
Star Strider
2015-1-20

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by