How to draw the wind feather picture

Answer 1

There were several ways to draw the Wind Feather Diagram:
1. Using three.js to draw:
- First of all, he had to understand the main process of creating 3D scenes in three.js, which was to create scenes, cameras, and renderers for 3D rendering. When it came to drawing a wind feather map, one had to understand the concept of wind feathers in Meteorology. Wind feathers were symbols used to represent wind direction and wind speed. Different shapes represented different wind speeds and wind directions (such as a single wind feather symbol, a simple feather symbol, a wind flag symbol, etc.). Then, he would draw it according to the implementation idea, including constructing a rectangular shape to draw the wind feather.
2. Using MatplotLib programming to draw:
- The following steps could be followed:
- step1： After downloading the code, he replied with the word "Wind Feather" in the background of the official account, downloaded the source code, and replaced the original quiver.py with the downloaded quiver.py (The original quiver.py path may be under the F: path, and the path needs to be adjusted according to the actual situation).
- Step 2: Use the quiver function normally. It was divided into four levels by default. The short line represented wind speed of 2m/s, the long line represented wind speed of 4m/s, the hollow triangle represented wind speed of 20m/s, and the solid triangle represented wind speed of 50m/s. If it is consistent with your requirements, you don't need to modify it. If it is inconsistent, you can modify it through the Barb_Increments argument. For example, to draw an 80m/s wind feather (short lines represent wind speeds of 2m/s, long lines represent wind speeds of 4m/s, hollow triangle represents wind speeds of 20m/s, and solid triangle represents wind speeds of 50m/s. This is the same as the default level, so there is no need to modify it), the code is as follows:
- import matplotlib.pyplot as plt
- fig = plt.figure()
- ax = fig.add_subplot(111);
- ax.axis((-1,1,-1,1))
- ax.set_xticks(())
- ax.set_yticks(())
- ax.barbs(0,0,30*1.6,40*1.6,length = 8,linewidth = 0.5,flagcolor='none',barbcolor='black')
- plt.show()
- If the drawing requirements of the feather are different from the default settings, such as drawing a 50m/s feather, the short line represents the wind speed of 2m/s, the long line represents the wind speed of 4m/s, and the hollow triangle represents the wind speed of 20m/s (the fourth level is not used here, you need to set fullflag = None.) If not set, the default is still fullflag = 50). The code is as follows:
- import matplotlib.pyplot as plt
- fig = plt.figure()
- ax = fig.add_subplot(111);
- ax.axis((-1,1,-1,1))
- ax.set_xticks(())
- ax.set_yticks(())
- ax.barbs(0,0,30*1., 40*1., length = 8,linewidth = 0.5,flagcolor='none',barbcolor='black',barb_increments = dict(half = 2, full = 4, flag = 20,fullflag = None))
- plt.show()

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