vector-graphics

How to change color of vector drawable path on button click

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The color of the whole vector can be changed using setTint. You have to set up your ImageView in your layout file as this: <ImageView android:id=”@+id/myImageView” android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:tint=”@color/my_nice_color” android:src=”https://stackoverflow.com/questions/35625099/@drawable/ic_my_drawable” android:scaleType=”fitCenter” /> Then to change the color of your image: DrawableCompat.setTint(myImageView.getDrawable(), ContextCompat.getColor(context, R.color.another_nice_color)); Note: myImageView.getDrawable() gives nullpointerexception if the vector drawable is set to the … Read more

Finding the centroid of a polygon?

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The formula is given here for vertices sorted by their occurance along the polygon’s perimeter. For those having difficulty understanding the sigma notation in those formulas, here is some C++ code showing how to do the computation: #include <iostream> struct Point2D { double x; double y; }; Point2D compute2DPolygonCentroid(const Point2D* vertices, int vertexCount) { Point2D … Read more

Rendering SVG with OpenGL (and OpenGL ES)

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My answer is going to about displaying vector graphics wtih OpenGL in general, because all solutions for this problem can support rather trivially SVG in particular, although none support animated SVGs (SMIL). Since there was nothing said about animation, I assume the question implied static SVGs only. First, I would not bother with anything OpenVG, … Read more

Drawing SVG in .NET/C#? [closed]

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Check out the SVG framework in C# and an SVG-GDI+ bridge project. From the above web page… The SvgGdi bridge is a set of classes that use SvgNet to translate between SVG and GDI+. What this means is that any code that uses GDI+ to draw graphics can easily output SVG as well, simply by … Read more

Getting R plots into LaTeX?

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I would recommend the tikzDevice package for producing output for inclusion in LaTeX documents: http://cran.r-project.org/web/packages/tikzDevice/index.html The tikzDevice converts graphics produced in R to code that can be interpreted by the LaTeX package tikz. TikZ provides a very nice vector drawing system for LaTeX. Some good examples of TikZ output are located at: http://www.texample.net/ The tikzDevice … Read more

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