Google - SketchUp

Lesson 26: Tips

Tips for drawing

When you draw a line parallel to the red, green or blue axis, hold the Shift key on your keyboard pressed. This will lock the direction of the line being drawn.
This way when hover over any reference point, the axis on which you are drawing will remain selected. This axis is indeed bold.

If you want to draw a  line with a slope to a particular axis, in this case the green axis, hold the Shift key on your keyboard pressed when you move the cursor on this axis, once the axis locks, move the mouse pointer over the inclined plane, and click.
SketchUp will automatically add the line to this axis, as in the image below, that is the green axis.

Once the length of the line is calculated and marked by SketchUp, it is simple to draw a line from one endpoint to another in order to obtain a plane.

We can use the same with the “Move” tool also.
If you have a certain reference point or plane, it does not matter.
Select a reference point, such as the midpoint of a line, you move the mouse upwards, keep the Shift key on your keyboard pressed to lock the direction, move the mouse pointer over the area that you selected, once the line is aligned, click. This gives a perfectly aligned plane, in this case, we have returned back to a cube.

One last example.
When drawing a polygon whose perspective must be the same as that of a certain plane, first select  the Polygon tool, move the mouse pointer over the plane, hold the Shift key down, move the mouse pointer to where you wish to draw the polygon, and draw the polygon with the Shift key still pressed.

Same for a circle, a square, or any other drawing tool.

Result:

Awesome!
You've completed Lesson 26
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