When working with multiple camera views on the same scene in Makie, there are several approaches you can take to achieve the desired result. In this article, we will explore three different solutions to this problem.
Solution 1: Using Multiple Scenes
One way to handle multiple camera views is by creating multiple scenes in Makie. Each scene can have its own camera and viewport, allowing you to control the view independently for each camera. Here’s an example:
using Makie
# Create the first scene with its own camera
scene1 = Scene()
camera1 = Camera(scene1)
scene1.camera = camera1
# Create the second scene with its own camera
scene2 = Scene()
camera2 = Camera(scene2)
scene2.camera = camera2
# Add objects to each scene
# ...
# Render the scenes
display(scene1)
display(scene2)
This approach allows you to have full control over each camera’s position, orientation, and other properties. However, it requires managing multiple scenes and cameras, which can be cumbersome if you have many camera views.
Solution 2: Using Multiple Viewports
Another approach is to use multiple viewports within a single scene. A viewport defines a rectangular region within the scene where the camera’s view is displayed. By creating multiple viewports, you can display different camera views within the same scene. Here’s an example:
using Makie
# Create the scene
scene = Scene()
# Create the first camera and viewport
camera1 = Camera(scene)
viewport1 = Viewport(scene, camera1, rect=[0, 0, 0.5, 1])
# Create the second camera and viewport
camera2 = Camera(scene)
viewport2 = Viewport(scene, camera2, rect=[0.5, 0, 0.5, 1])
# Add objects to the scene
# ...
# Render the scene
display(scene)
This approach allows you to have multiple camera views within a single scene, simplifying the management of scenes and cameras. However, it may be more challenging to control the position and orientation of each camera view compared to using multiple scenes.
Solution 3: Using Multiple Subplots
A third approach is to use multiple subplots within a single figure. A subplot is a division of the figure’s canvas where you can display different plots or scenes. By creating multiple subplots, you can display different camera views within the same figure. Here’s an example:
using Makie
# Create the figure with multiple subplots
fig = Figure()
# Create the first subplot with its own scene and camera
subplot1 = Subplot(fig, 1, 1, 1)
scene1 = Scene(subplot1)
camera1 = Camera(scene1)
subplot1.scene = scene1
subplot1.camera = camera1
# Create the second subplot with its own scene and camera
subplot2 = Subplot(fig, 1, 1, 2)
scene2 = Scene(subplot2)
camera2 = Camera(scene2)
subplot2.scene = scene2
subplot2.camera = camera2
# Add objects to each scene
# ...
# Render the figure
display(fig)
This approach provides a convenient way to display multiple camera views within a single figure. It allows you to control each camera’s properties and provides flexibility in arranging the subplots. However, it may require more effort to manage the layout and positioning of the subplots compared to the previous solutions.
After considering these three options, the best approach depends on your specific requirements and preferences. If you need full control over each camera view, using multiple scenes may be the most suitable option. If you prefer a simpler setup and don’t require fine-grained control over camera properties, using multiple viewports or subplots within a single scene or figure can be more convenient.
