I am not sure with the default tools, not like in other CAD software, at least. But to create a line with a specific length, you can do it through creating points and then use the vertex editor to give them specific co-ordinates. You must create a point-style layer, turn on editing, create the points (place them wherever), and then right-click on one point to bring up the vertex editor panel. If you are using a CRS with metres as the unit, you would then change the co-ordinates of one of the points to be X metres away from the other. You'd then draw a line snapping to those points with your main lines layer. It's a bit round-about but that's one way to do it. The other would be to draw in Rhino, AutoCAD, or VectorWorks and export as a DXF and import directly!
I am not sure about inputting exact co-ordinates as you draw. However, you can right click on any point to bring up the Vertex Editor and then manually change the X and Y co-ordinates like that. Alternatively, you could import a .csv file containing all of your co-ordinates and generate geometry out of that. This would require using the New Layer > Delimited Text Layer function.
Thanks for the clear explanation. Appreciated from a QGIS learner👍👍
Thanks for the clear explanation !
Brilliant clear explanation. Thank you.
Thanks for the good demo. How do you edit existing polygon?
Thank you this was helpful!! Is there a way to make the lines a specific length??
I am not sure with the default tools, not like in other CAD software, at least. But to create a line with a specific length, you can do it through creating points and then use the vertex editor to give them specific co-ordinates. You must create a point-style layer, turn on editing, create the points (place them wherever), and then right-click on one point to bring up the vertex editor panel. If you are using a CRS with metres as the unit, you would then change the co-ordinates of one of the points to be X metres away from the other. You'd then draw a line snapping to those points with your main lines layer.
It's a bit round-about but that's one way to do it. The other would be to draw in Rhino, AutoCAD, or VectorWorks and export as a DXF and import directly!
Legend mate - very clear
Thanks,
It would be nice to add how to place your line/polygone at specific points (e.g how to create a line from coordinate 1 to coordinate 2)
I am not sure about inputting exact co-ordinates as you draw. However, you can right click on any point to bring up the Vertex Editor and then manually change the X and Y co-ordinates like that. Alternatively, you could import a .csv file containing all of your co-ordinates and generate geometry out of that. This would require using the New Layer > Delimited Text Layer function.
How do I do like a free hand editing?
Cheers m8 I'll check it out.
Thank you very much!
4:24 Add Polygon
It won't let me save rectangles?
Check your projection system. Some geometry can misbehave if you have more complicated CRSs and the new layer doesn't share the CRS.