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Mike Garrity

MathWorks

Active since 2013

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Computer Graphics Years
I loved the question that Steve recently asked on his blog about what your earliest computer experiences were. It brought...

nästan 7 år ago

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Creating 3d slice plot from various 2d dot plots
So you have something like this: npts = 120; for i=1:10 years(i,:) = randi(50,[1 npts]); windows(i,:) = randn(...

mer än 8 år ago | 0

Answered
Better data tip for Polar graph
The new <http://www.mathworks.com/help/matlab/ref/polarplot.html polarplot function> in R2016a does this for you. <</matlabc...

mer än 8 år ago | 0

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How to extract data point from a vector graphics by MATLAB?
The coordinates in the output file are not going to be the same as your data values. They can't be in some cases (e.g. YScale='l...

mer än 8 år ago | 0

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Color a sphere surface/polar plot axis-wise
Something like this, perhaps? [x,y,z] = sphere(40); col(:,:,1) = abs(y); col(:,:,2) = abs(x); col(:,:,3) = abs(z);...

mer än 8 år ago | 1

Answered
how to pause mesh command?
As I explained in <http://blogs.mathworks.com/graphics/2015/06/09/object-creation-performance/ this post on the MATLAB Graphics ...

mer än 8 år ago | 0

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How can I create 2D projections from a 3D object?
One approach is the technique I showed in answers to <http://www.mathworks.com/matlabcentral/answers/258711-how-to-i-surf-or-3d-...

mer än 8 år ago | 1

Published


The Five Tetrahedra
The dodecahedron is a particularly interesting polyhedron. It's full of interesting five-fold symmetries. Let's take a look...

mer än 8 år ago

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Bar graphs with two sets of different sizes
One simple way is this: none = length(one); ntwo = length(two); h = nan(max(none,ntwo),2); h(1:none,1)=one; h(1...

mer än 8 år ago | 0

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Answered
Cannot save opengl settings
I think that the "save" feature was added in R2014b. So you can't use it in R2014a. The simplest workaround would probably b...

mer än 8 år ago | 0

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Handling axes as arguments
Axes only returns an axes handle in the cases where it is creating an axes object. The syntax where you pass an axes handle in i...

mer än 8 år ago | 0

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how to set default properties for annotations
The pattern is * 'Default' * The value of the object's Type property * The name of the property you want to set. So, if...

mer än 8 år ago | 1

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Answered
May I ask how to do elliptic curve in matlab? because I have no idea to start...
Elliptic curves are examples of implicit curves. I discussed how to plot implicit curves in <http://blogs.mathworks.com/graphics...

mer än 8 år ago | 0

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Answered
How can I plot y-z plane slices in a 3D volume?
You don't really need to build a full 3D array and then slice it. You can just place individual 2D slices in a 3D axes. [y,...

mer än 8 år ago | 3

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Answered
contourf with fixed colormap
Try uncommenting the call to caxis and moving it after the call to contourf. It needs to be after the call to contourf because t...

mer än 8 år ago | 0

Answered
Computer freezes SOMETIMES when plotting
If it only happens when you plot, then the first suspect would be the driver for the graphics card. I would look to see whether ...

mer än 8 år ago | 0

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Getting particular scatter plots
Something like this perhaps: hs = scatter(randn(1,1000),randn(1,1000),'.'); hr = rectangle('Position',[.5 .5 .65 .5]); ...

mer än 8 år ago | 0

Answered
How to convert a binary 3d matrix to mesh.
Yes, I would think that <http://www.mathworks.com/help/matlab/ref/isosurface.html isosurface> is the first thing to try. Just gi...

mer än 8 år ago | 2

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Answered
How to change the stem line color
That looks like the graphics driver bug which was discussed in <http://www.mathworks.com/matlabcentral/answers/275146-plot-lines...

mer än 8 år ago | 0

Answered
hObject, eventdata and handles not return double in R2016a
There was quite a bit of documentation on this as part of the R2014b release. <http://www.mathworks.com/help/matlab/graphics_tra...

mer än 8 år ago | 0

Answered
How to plot a triangular shape function on a triangular domain?
I described one approach in <http://www.mathworks.com/matlabcentral/answers/165073-please-help-me-to-program-of-this-equation-of...

mer än 8 år ago | 1

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Answered
how to plot a single valued function over a triangulated surface?
You can do it with patch. You'll just want to set FaceColor to interp and set the FaceVertexCData to to value of your function. ...

mer än 8 år ago | 1

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Problem with plotting on log scale - disappearing line on plot...
I'm guessing that xplot and yplot are 2 element vectors where one of the values is 0. In that case, one of the 2 points on the l...

mer än 8 år ago | 2

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Answered
2nd Y Axis problem - All works until I add the 2nd data set
I think that the problem is that the plot function resets a lot of the axes properties that you set when you created the 2nd axe...

mer än 8 år ago | 1

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Published


FPLOT and Friends
Another new feature that I really like in R2016a is the upgraded fplot function and all of the new members of the fplot...

mer än 8 år ago

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matlab 2015 returns an empty graph
This code is creating 6,001 line objects which each have a single vertex. A line object with a single vertex is a degenerate cas...

mer än 8 år ago | 0

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Answered
3D plor plot
The <http://www.mathworks.com/help/matlab/ref/pol2cart.html pol2cart function> will convert this to 3D Cartesian, so it's easy t...

mer än 8 år ago | 1

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Answered
Showing only part of markers that overflow off the edges of a plot?
No there isn't a simple way to do that type of clipping with markers. In fact, you wouldn't believe how much work we do to get m...

mer än 8 år ago | 0

Answered
Draw stack order for yyaxis
I'm afraid that feature didn't make it into this initial release of yyaxis. As you've noted, the contents of the right side are ...

mer än 8 år ago | 1

Answered
Why is my default plot() showing up with gradient colors on the lines?
That looks a lot like <http://www.mathworks.com/matlabcentral/answers/275146-plot-lines-displaying-as-black-plus-gradient this i...

mer än 8 år ago | 0

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