![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/483098/image.png)
Can you make the output of this graph have multiple colors, like one timing bit is one color and the next one is another color.
3 次查看(过去 30 天)
显示 更早的评论
h = [1 1 0 1 0 1 0 1];
bitrate = 1;
n = 1000;
T = length(h)/bitrate;
N = n*length(h);
dt = T/N;
t = 0:dt:T;
x = zeros(1,length(t));
lastbit = 1;
for i=1:length(h)
if h(i)==1
x((i-1)*n+1:i*n) = -lastbit;
lastbit = -lastbit;
else x((i-1)*n+1:i*n) = lastbit;
end
end
d=plot(t,x);grid on;
title('Line code POLAR NRZ-I');
set(d,'LineWidth',2.5);
axis([0 length(h) -1.5 1.5]);
counter = 0;
lastbit = 1;
for i = 1:length(t)
if t(i)>counter
counter = counter + 1;
if x(i)~=lastbit
result(counter) = 1;
lastbit = -lastbit;
else result(counter) = 0;
end
end
end
disp(result);
0 个评论
采纳的回答
Image Analyst
2021-1-9
编辑:Image Analyst
2021-1-9
To plot in different colors you have to specify a linespec in plot, like
d=plot(t,x, 'r-', 'LineWidth', 2); % Plot red line of width 2.
d=plot(t,x, 'b-', 'LineWidth', 3); % Plot blue line of width 3.
d=plot(t,x, '-', 'LineWidth', 2); % Plot line of width 2 in next default color;
Here's a full demo:
numLines = 10
lineColors = jet(numLines);
x = linspace(0, 2*pi, 1000);
period = pi;
legendStrings = cell(numLines, 1);
for k = 1 : numLines
y = sin(2*pi*x/(k * period));
plot(x, y, '-', 'Color', lineColors(k, :), 'LineWidth', 3);
hold on;
legendStrings{k} = sprintf('Curve #%d', k);
end
grid on;
xlabel('x', 'FontSize', 20);
ylabel('y', 'FontSize', 20);
legend(legendStrings, 'Location', 'southwest');
Also see attached m-file for a different demo.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/483098/image.png)
4 个评论
Image Analyst
2021-1-9
Crish, here's another demo where I vary teh color with y value instead of x value:
clear all;
close all;
clc;
format long g;
format compact;
fontSize = 15;
fprintf('Beginning to run %s.m ...\n', mfilename);
x = linspace(0, 2*pi, 1000);
period = pi;
y = sin(2*pi*x/period);
numMarkers = numel(y);
markerColors = jet(numMarkers);
subplot(2, 1, 1);
for k = 1 : length(x)
plot(x(k), y(k), '.', 'Color', markerColors(k, :), 'MarkerSize', 30);
hold on;
end
grid on;
caption = sprintf('Line Color Varies Along X. Composed of %d Differently Colored Markers', numMarkers);
title(caption, 'FontSize', 20);
xlabel('x', 'FontSize', 20);
ylabel('y', 'FontSize', 20);
xlim([min(x), max(x)]);
% Maximize the figure window.
g = gcf;
g.WindowState = 'maximized';
% Do it again but instead of changing color as we move along the x axis,
% change it as we go along the y axis. So the marker color depends on the y value.
subplot(2, 1, 2);
numMarkers = numel(unique(y));
markerColors = jet(numMarkers);
miny = min(y);
maxy = max(y);
% Get indexes into the color map for each y value.
colorMapRows = round(rescale((y - miny) / (maxy - miny), 1, numMarkers));
for k = 1 : length(x)
thisMarkerColor = markerColors(colorMapRows(k), :);
plot(x(k), y(k), '.', 'Color', thisMarkerColor, 'MarkerSize', 30);
hold on;
end
grid on;
caption = sprintf('Line Color Varies With Y Value. Composed of %d Differently Colored Markers', numMarkers);
title(caption, 'FontSize', 20);
xlabel('x', 'FontSize', 20);
ylabel('y', 'FontSize', 20);
xlim([min(x), max(x)]);
fprintf('Done running %s.m.\n', mfilename);
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/483228/image.png)
I think you pretty much have all possibilities now.
更多回答(2 个)
Crish
2021-1-13
1 个评论
Image Analyst
2021-1-14
编辑:Image Analyst
2021-1-14
Correct. You do not have any data points there. If you really need lines between the data points, you can go to some more trouble to get them by drawing a line from each point to the prior point but the line will be all one color, not have a color gradient. I'm pretty sure you're capable of that but if you're not, attach your data.
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Log Plots 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!