我有一张地形图，我想在其中表示一些数据。见下图：
右边白色圈出的区域是绘图其余部分的单独冲浪函数。我想做的是改变配色方案。外部应该是灰度，内部应该是基于我与绘图分开的值的单一颜色。目前我已经尝试了 colormap(gray) 函数然后改变，但这改变了整个情节。
我愿意接受有关不同绘图风格的建议，即。plot3 而不是冲浪。所以我必须制作这两个冲浪的数据是两个 x、y、z 点列表。
如果可能的话，我还想显示一个表示圆圈区域颜色的颜色条（由我根据外部值设置）。
有谁知道这样做的好方法？
谢谢。
编辑：
我想做的是：
图像不应该在土堆顶部有深蓝色。图像将不断更新更多的“蓝色”点，颜色应根据外部值更改，理想情况下，如果它们重叠，它将与先前的点合并颜色。
由于您只想将圆圈区域设置为单一颜色，您可以设置它的FaceColor属性。例如：
%# make some test data
[xx,yy]=ndgrid(-5:0.1:5,-5:0.1:5);
zz = exp(-xx.^2/2+-yy.^2/2);
zz1 = zz;
zz1(zz1>0.5)=NaN;
zz2 = zz;
zz2(zz2<0.5)=NaN;
%# plot first surface, set colormap
surf(zz1)
colormap('gray')
%# stretch colormap to [0 0.5]
caxis([0 0.5])
%# plot the second surface in red
hold on
surf(zz2,'faceColor','r')
编辑
如果您想为您的部分表面设置不同的颜色图，您需要将'CData'表面的属性设置为颜色图中的索引。要仅在颜色栏中显示单个颜色图，您可以利用颜色栏只是另一个图的事实，这意味着您可以仅显示其中的一部分，并更改标签。
%# make some more test data
[xx,yy]=ndgrid(-5:0.1:5,-5:0.1:5);
zz = exp(-xx.^2/2+-yy.^2/2);
zz1 = zz(1:50,:);
zz2 = zz(52:end,:);
xx1 = xx(1:50,:);xx2=xx(52:end,:);
yy1 = yy(1:50,:);yy2=yy(52:end,:);
%# create multi-colormap, set it to figure
figure
cmap = [gray(128);copper(128)];
colormap(cmap)
%# plot surfaces, setting the cdata property to indices 1-128 and 129-256,
%# respectively, in order to access the different halves of the colormap
surf(xx1,yy1,zz1,'cdata',round(127*(zz1-min(zz1(:))/(max(zz1(:))-min(zz1(:)))))+1,'cdatamapping','direct')
hold on
surf(xx2,yy2,zz2,'cdata',round(127*(zz2-min(zz2(:))/(max(zz2(:))-min(zz2(:)))))+129,'cdatamapping','direct')
%# find the handle to the colorbar
%# alteratively: cbarH = findall(gcf,'tag','Colorbar')
cbarH = colorbar;
%# set limits and ticks/labels
ylim(cbarH,[129 255])
set(cbarH,'ytick',[129 192 255],'yticklabel',[0 0.5 1])
您是否从 MATLAB 技术支持处看到了这一点？
http://www.mathworks.com/support/solutions/en/data/1-GNRWEH/index.html
您可以编辑colorbar属性。
g = colorbar;
get(g)
例如，
% Define a colormap that uses the cool colormap and
% the gray colormap and assign it as the Figure's colormap.
colormap([cool(64);gray(64)])
% Generate some surface data.
[X,Y,Z] = peaks(30);
% Produce the two surface plots.
h(1) = surf(X,Y,Z);
hold on
h(2) = pcolor(X,Y,Z);
hold off
% Move the pcolor to Z = -10.
% The 0*Z is in the statement below to insure that the size
% of the ZData does not change.
set(h(2),'ZData',-10 + 0*Z)
set(h(2),'FaceColor','interp','EdgeColor','interp')
view(3)
% Scale the CData (Color Data) of each plot so that the
% plots have contiguous, nonoverlapping values. The range
% of each CData should be equal. Here the CDatas are mapped
% to integer values so that they are easier to manage;
% however, this is not necessary.
% Initially, both CDatas are equal to Z.
m = 64; % 64-elements is each colormap
cmin = min(Z(:));
cmax = max(Z(:));
% CData for surface
C1 = min(m,round((m-1)*(Z-cmin)/(cmax-cmin))+1);
% CData for pcolor
C2 = 64+C1;
% Update the CDatas for each object.
set(h(1),'CData',C1);
set(h(2),'CData',C2);
% Change the CLim property of axes so that it spans the
% CDatas of both objects.
caxis([min(C1(:)) max(C2(:))])
% I added these two lines
g = colorbar
set(g,'YLim',[1 60])
最后两行是我的。其余部分来自 MATLAB 技术支持链接。它会给你一个只有一个颜色图的颜色条。如果您想要颜色图的灰色部分，那么您可以使用set(g,'YLim',[64 128]).
