![]() I believe this is from calling the 'patch' function multiple times.Ī better solution would be to vectorise to put all your points (vertices/faces/whatever) together in a single matrix first and then call the function only once (no 'for' loop). running this 'plotcube' function in a 'for' loop in MATLAB over thousands of blocks. for large models (many cubes) this is very slow to run.Į.g. (above) change the section in Olivers code, adding in the four extra lines of code as follows: (replace the whole cellfun section with this including the new 'EdgeAlpha' and 'EdgeColor' lines): % Set this value to whatever you want even a variable / matrixįor more info on 'patch' please see patch documentation. fixed edge colour, or a colour that changes with Z-value etc.) Change the colour of the lines (EdgeColor).Īll of these can be constants, or variables.Change the transparency of the edges (EdgeAlpha), and/or,.Change the transparency of the faces (FaceAlpha), and/or,.The advantage of this solution is that you can: I understand this is a late reply but it is still valid in case anyone else is looking at doing the same thing.Īssuming you are plotting cubes (/their edges), an alternative to the answers already provided is to use the 'plotcube' code from Oliver: It has the advantage that it creates a single graphic object: %# these don't all have to be the same move individual vertices for open paths.Īn activated shape is deleted by clicking on the eraseshape button.ĭrawing or modifying a shape triggers a relayout event, which can be captured by a callback inside a Dash application.Consider this vectorized solution. ![]() drag and move individual vertices for closed paths.drag and resize it for lines, rectangles and circles/ellipses.Its fillcolor turns to pink to highlight the activated shape and then you can Once you have drawn shapes, you can select and modify an existing shape by clicking on its boundary (note the arrow pointer). This shape-drawing feature is particularly interesting for annotating graphs, in particular image traces or layout images. If you switch to a different dragmode such as pan or zoom, you will need to select the drawing tool in the modebar to go back to shape drawing. If you need to switch between different shape-drawing or other dragmodes (panning, selecting, etc.), modebar buttons can be added in the config to select the dragmode. You can create layout shapes programmatically, but you can also draw shapes manually by setting the dragmode to one of the shape-drawing modes: 'drawline', 'drawopenpath', 'drawclosedpath', 'drawcircle', or 'drawrect'. show ()ĭrawing shapes with a Mouse on Cartesian plots ¶ update_yaxes ( range =, zeroline = False, ) # Add shapes fig. update_xaxes ( range =, zeroline = False, ) fig. Scatter ( x =, y =, text =, mode = "text", )) # Update axes properties fig. Figure () # Create scatter trace of text labels fig. add_vrect ( x0 = "", x1 = "", fillcolor = "LightSalmon", opacity = 0.5, layer = "below", line_width = 0, ) fig. add_vrect ( x0 = "", x1 = "", fillcolor = "LightSalmon", opacity = 0.5, layer = "below", line_width = 0, ), fig. Scatter ( x =, y =, mode = "lines", name = "temperature" )) # Add shape regions fig. Figure () # Add scatter trace for line fig. Traces also support optional text, although there is a textual equivalent to shapes in text annotations.Traces cannot be positioned absolutely but can be positioned relative to date coordinates in any subplot type.Shapes can be positioned absolutely or relative to data coordinates in 2d cartesian subplots only.Traces can optionally support hover labels and can appear in legends.The differences between these two approaches are that: ![]() Note: there are special methods add_hline, add_vline, add_hrect and add_vrect for the common cases of wanting to draw horizontal or vertical lines or rectangles that are fixed to data coordinates in one axis and absolutely positioned in another.
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