1, open the ps software.

2. Execute the "File" and "New" commands in the menu bar. Create a new blank file with 400*400 pixels.

3. Click the Create New Layer button at the bottom of the Layers panel to create a new layer (layer 1).

4. execute the "view" > "ruler" command in the menu bar to bring up the ruler.

5. Execute the command View and New Reference Line in the menu bar, select Vertical, and then click OK to create a new vertical reference line.

6. Execute the commands of View and New Reference Line in the menu bar, select Horizontal, and click OK to create a new Horizontal Reference Line.

7. Select "Move Tool" in the menu bar, refer to the ruler, and move the two reference lines to the center of the blank file.

8. Select the Ellipse Tool in the toolbar, place the cursor on the intersection of two reference lines, press the left mouse button, press the shift key, and drag the mouse to draw a perfect circle.

9. After drawing, release the left mouse button first, and then release the "shift key".

10. Click the Path panel to switch to the path state.

1 1. Click the "Fill Path with Foreground" button below the path panel to fill the foreground for the perfect circle. I set the "foreground color" to "green". )

12. Select "Rectangle Tool" in the toolbar, and frame the lower semicircle with the rectangle tool.

13. Press the shortcut key: "Control key+Enter key" to load the selection, and click "Delete key" on the keyboard to delete the semicircle below. Then press "control key +D" to cancel the selection.

14. Execute the "View" and "Clear Reference Line" commands in the menu bar to clear the reference line.

15. Execute the "View" and "Ruler" commands in the menu bar to cancel the ruler.

16, save the map. Click File in the menu bar, click Save As (a)… in the drop-down list, select a storage location (such as desktop), enter the file title in the file name (n) column, click the small triangle on the right side of the format (f) column, select JPEG format, click Save, and click OK.

The effect is as follows:

Tip: You can also add a "layer style"! The method is:

Double-click "Layer 1", and check the options such as bevel and relief, texture and gradient overlay in the pop-up layer style box.

The effect is as follows:

Second, draw an arc semicircle:

Step 1- 10 is the same as the above step 1- 10.

1 1. Select "Direct Selection Tool" in the toolbar, and click the circular path with the cursor. Four hollow anchor points will be displayed on the circular path. Click on the anchor points above and below the perfect circle path, that is, the solid anchor points that turn black. Right-click the solid anchor, and then click Delete Anchor in the pop-up box.

12. Select the Transition Point Tool in the toolbar and drag the handle of the direction line with the cursor. Make the left direction line point to the lower right and the right direction line point to the upper left. The two direction lines are parallel to each other, and the midpoint of the S-shaped curve coincides with the center of the circle.