This article outlines a step-by-step guide to modeling a building using a pre-existing 2D drawing. Currently, drawing.tool accommodates the import of image files such as PNG and JPEG. For users who have drawings in PDF or DWG format, exporting those file(s) to an image format will need to be done first.
Step 1: Importing the image file
First, be sure that you are in 2D view. You can check this by ensuring that the top button to the left of the drawing space shows 2D instead of 3D.
Next, select the 'Catalog' button on the left-hand side of the drawing space (background grid). In the Catalog, select 'Image.' This will prompt you to place the image in the drawing space, and you can do so by clicking the grey box anywhere within the grid space. On the right-hand side panel, select 'Upload Image' and select your image file from your device.
After placing the image, make sure it's scaled and placed within the drawing space. As soon as you begin drawing, you will not be able to edit placement or move your model.
Step 2: Scale your image
To scale your image, click on the image and go to the right hand side panel. To change the scale of the image, you will need to change the width and height of the image.
In this example, the drawing is in 1/8" = 1'-0" scale. The image is sized at 236.22 (W) x 157.48 (H). To scale the image to a 1:1 scale, simply multiply the image size by 8. The image proportion is locked, so changing one of these inputs will automatically change the other accordingly.
Quick tip: You can check to ensure that the image is properly scaled by drawing a wall along the dimension line of your drawing, and making sure that the wall length is the same as indicated by the dimension line.
Step 3: Trace the drawing
You are now ready to create your model by tracing the drawing. Select the building objects from the top row of buttons. We recommend that you start by tracing your walls, then adding doors, windows and other components.
Quick tip: For a more efficient workflow when drawing walls, you can change the wall thickness and floor-to-floor height before drawing by clicking on the Default Preferences tab and changing the wall thickness there.