Main VisPy Canvas for simulation of physical system. Parameters ---------- d1 : float Length of rod (in

Shorter string representation

Add constraint: all viewbox dims in each dimension are equal. With all dims the reserved space for a widget with a col_span and row_span of 1

Add constraint: total height == sum(col heights) + sum(spacing). The total height of the grid is constrained to be equal to the sum of the he

Add an output line. Can be multiple lines.

Convert x,y coordinates to w,x,y,z Quaternion parameters Adapted from: linalg library Copyright (c) 2010-2015, Renaud Blanch <rndblnch

Convert x,y coordinates to w,x,y,z Quaternion parameters Adapted from: linalg library Copyright (c) 2010-2015, Renaud Blanch <rndblnch

Helper to turn val into array and clip between 0 and 1

Assign *name* to *obj* in *shaders*.

Broadcast color (4,) to (n, 4) or return (n, 4) as-is.

Broadcast scalar or array to length n.

Build the code snippet used to clip the volume based on self.clipping_planes.

Helper to calculate the delta position

Compute LineVisual color from level index and corresponding color

Compute LineVisual color from level index and corresponding level color

Compute uniform texture shape

Force edge (i, j) to be present in mesh. This works by removing intersected triangles and filling holes up to the cutting edge.

Given a triangle, return the edge that is opposite point i. Vertexes are returned in the same orientation as in tri.

Compute cross product between list of 3D vectors Much faster than np.cross() when the number of cross products becomes large (>500). This is

Return the triangle that has edge[0] as one of its vertices and is bisected by edge. Return None if no triangle is found.

Match pattern against the output of func, passing the results as floats to func. If anything fails, return None.

Helper to get the GL version string

This actually calculates the kerning + advance

Retrieve vertices and connects from given paths-list

Helper to get the default directory for storing vispy data

Helper to get vispy calling function from the stack

Fetch a remote vispy font

Insert text into bytes buffers

Return True if *obj* should be declared in the global namespace. Some objects need to be declared only in per-shader namespaces: func

Helper to load prefs from ~/.vispy/vispy.json

Convert numpy array to PNG byte array. Parameters ---------- data : numpy.ndarray Data must be (H, W, 3 | 4) with dtype = np.ubyt

Helper to get the class name once it's been created

Return True if *name* is available for *obj* in *shaders*.

Make the quaternion unit length.

Called when the frame get configured or resized.

Helper to parse key states into Vispy keys. Parameters ---------- e : tk.Event The passed in Event. Retu

This visual is about to be drawn. Visuals should implement this method to ensure that all program and GL state variables are updated

Helper to convert from wx keycode to vispy keycode

Try to apply the variables that were set but not known yet.

Render an EDF to a texture

Render the scene in picking mode, returning a 2D array of visual IDs in the area specified by crop. Parameters ----------

Normalize the given coordinate list to the range [0, `scale`]. Parameters ---------- pos : array Coordinate list scale :

Helper for assert_* ports

Initialize constants for the system that will be used later.