Questions tagged [regionplot]
The regionplot tag has no summary.
24 questions
5
votes
3
answers
152
views
How to make RegionPlot3D draw facets accurately
I've been thinking about hexastix and I thought I would try to make some images in Mathematica, similar to this one which I took from Wikipedia:
So, my first goal is to make a single infinite ...
- 1,654
2
votes
2
answers
150
views
How to impose constraints $g(x,y)=0$ and $h(x,y)=0$ inside Plot3D?
I have a two-variable function $f(x,y)$ and want to use Plot3D to plot it, assuming that two constraints $g(x,y)=0$ and $h(x,y)=0$ are satisfied simultaneously. I ...
- 53
3
votes
3
answers
280
views
Triangulations in PDF (vector) export of RegionPlot
I am bringing up an issue with RegionPlot’s PDF export that has been ongoing for the last couple of years. The produced PDF (vector) shows triangulations and meshes ...
- 93
1
vote
1
answer
137
views
Different result `RegionPlot` and `Region[ImplicitRegion[...]]`
RegionPlot shows my region as expected
...
- 62.5k
1
vote
1
answer
207
views
Delimitate non-trivial 3D region from inequalities and project in different planes
I am trying to get 2D projections (onto the xy-, the xz- and the yz-planes) of a highly non-trivial 3D region delimited by 5 complicated inequalities on $(x,y,z)$.
It is not possible to intersect the ...
- 71
0
votes
0
answers
88
views
Changing the output of RegionPlot3D
I am hoping to make a figure that shows the output of the Solve command below, with Plot3D. Ideally, I want to make a cube of ...
- 117
1
vote
4
answers
195
views
Why does `RegionPlot` not give the real result in the given example?
I have the following function $f$ for NEGATIVE $x$ and I want to use RegionPlot to see the domain of $x$ for which the given function lies between the lines $-1$ ...
- 63
3
votes
2
answers
351
views
I want to plot the image of some region by a map
We want to plot the region $\operatorname{f}\left(D\right)$, where
$$
\operatorname{f}:\mathbb{R}^{2} \to \mathbb{R}^{2}, \left(x,y\right)\mapsto \left(x,y + x^{2}\right)
$$
and $D := \left\{\left(x,y\...
- 31
3
votes
2
answers
282
views
RegionPlot3D not showing thin areas
I am trying to visualize a condition with the function RegionPlot3D.
I know that the area should look like this:
That is, for every v there is some orange area.
However, some areas are too thin, so ...
- 117
0
votes
0
answers
39
views
ImplicitRegion and RegionPlot [duplicate]
Here is a very simple example of ImplicitRegion:
...
- 1,497
0
votes
1
answer
79
views
Plotting a bar with variable density represented by a color gradient
The mass of a thin bar that has the following density function, rho.
rho[x_] := Piecewise[{{x^2, 0 <= x <= 1}, {x (2 - x), 1 <= x <= 2}}]
I would like ...
- 6,056
0
votes
1
answer
84
views
Manipulate a RegionPlot domain defined by a delayed expression [duplicate]
Consider the following input:
temp := c
Manipulate[RegionPlot[True, {a, 0, 1}, {b, 0, temp}], {c, 0, 1}]
I expect to get a region plot with a manipulate slider ...
- 863
5
votes
2
answers
216
views
How to draw the boundary line of intersecting region of a ContourPlot3D and a Graphics3D?
I have mathematical expressions of a cylinder (oriented along the x-axis) and a parabola. And I can easily plot both the surfaces using ContourPlot3D as shown below.
...
- 313
1
vote
1
answer
95
views
Why does RegionPlot handle Euler's identity differently for functions and direct expressions?
Edit
When I change the x range (e.g. {x,1,3}) I get the same error also for the direct expression. Thus, the problem exists either way and I assume it just evaluated different points?
Problem
I want ...
- 75
0
votes
0
answers
83
views
How to make a DensityPlot where parameters are dependent on each other?
I want to plot a variable function $\theta_sh=2*\theta_\infty(b,\Gamma)$, where $q$ and $\alpha$ are parameters such that $b$ is given by $L(\gamma)$. But I am not able to set the range of parameters. ...
- 57