To create a site plan in SketchUp we first need to source either CAD plans or an accurate aerial shot, ideally both should be available. First we find a Google Earth shot of our site and copy the scene using the Print Screen key on your keyboard. Then open an image editor like Adobe Photoshop and paste the shot into a new file. Flatten the image and save as a JPEG file.
Next we open a new file in SketchUp and go to the File drop-down menu to Import the image, navigate to where it's saved. One issue here is that SketchUp does not know how large to make the image, so we'll need to first place it. Then measure an object on the photo that we know the dimensions of, say a house roof length or, better still, the length of the site itself. We can then use the Measure tool to measure that object and punch in the precise size. SketchUp then asks you whether you wish to rescale the image; hit Enter to accept the rescale.
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We can also import Autocad drawings if we have the Pro version of SketchUp. This adds an extra level of detail in that we can precisely build our models to a suitable accuracy. Elevation drawings are also invaluable for creating the buildings.
In the example shown here the terrain was brought in via Google Earth in the Window, Model Info dialog box. However, we should note that the accuracy of the terrain is questionable, being captured by lasers and representing only 10m contours. A more accurate terrain model of the site can be created if we can import CAD drawings of the contours since these are often drawn to 1 meter increments.
Next we import the CAD site plan and overlay it onto the Google Earth shot. This gives us accurate readings for existing vegetation and roads. Before modeling, however, it's best to turn off any terrain layers. It's best to create on a flat surface in SketchUp Course, then later turn back on the terrain, and extrude the base of the buildings to a level below the terrain.
The process is now standard – we would model each of the buildings on the site plan, possibly using different layers and colours to denote existing buildings and proposed changes.
Shadow maps are also easily created in SketchUp via the Window, Shadows dialog box. By default the model is geol-cated to Boulder, Colarado, but if we have imported data from Google Earth, the model will be automatically geo-located to our map location and therefore the shadows are accurate, requiring only a possible adjustment for Daylight Saving. If we have not imported Google Earth terrain, we would have to manually insert the Latitiude & Longitude values into the Window, Model Info, Geo-location box, making sure to add S or N, and E or W. Otherwise the model reverts to the northern hemisphere.
Plug in extensions can be downloaded and used to create kerbed roads. Otherwise these can simply be drawn. Site Plan details can also be added to terrain via the Drape command. This can be found in the Sandbox toolbar.
We would then build or import Components like trees and foliage, cars, people, fences, etc. Signage peculiar to the site could be constructed by creating our own materials in the Materials panel. Note that there are two types of tree components in SketchUp: flat bitmap images and true 3D modeled trees. The latter whilst being more realistic in an animation will take longer to render. Foliga is often moved t a new layer and hidden until the final rendering takes place.
The process is now standard – we would model each of the buildings on the site plan, possibly using different layers and colours to denote existing buildings and proposed changes.
Shadow maps are also easily created in SketchUp via the Window, Shadows dialog box. By default the model is geol-cated to Boulder, Colarado, but if we have imported data from Google Earth, the model will be automatically geo-located to our map location and therefore the shadows are accurate, requiring only a possible adjustment for Daylight Saving. If we have not imported Google Earth terrain, we would have to manually insert the Latitiude & Longitude values into the Window, Model Info, Geo-location box, making sure to add S or N, and E or W. Otherwise the model reverts to the northern hemisphere.
Plug in extensions can be downloaded and used to create kerbed roads. Otherwise these can simply be drawn. Site Plan details can also be added to terrain via the Drape command. This can be found in the Sandbox toolbar.
We would then build or import Components like trees and foliage, cars, people, fences, etc. Signage peculiar to the site could be constructed by creating our own materials in the Materials panel. Note that there are two types of tree components in SketchUp: flat bitmap images and true 3D modeled trees. The latter whilst being more realistic in an animation will take longer to render. Foliga is often moved t a new layer and hidden until the final rendering takes place.
This is a summary of just one modeling process for a SketchUp siteplan; there are many variations to this theme.
Tracing an image is an easy (and thus common) way to create a floorplan in SketchUp and then turn that plan into a 3D model. You can also trace an image to model a 2D design that you want to place somewhere in a 3D model. Whatever you're trying to model, here's how to start tracing an image:
- Import your image into SketchUp by selecting File > Import. Then navigate to and select the image you want to import. If you don't see the image you're looking for, make sure the correct file type is selected (such as JPG or PNG). Tip: Alternately, you can also drag and drop importable files into the drawing area. After you drop the file, click and drag the scaling handles to size the image on the ground plane.
- In the Use Image As area, make sure the Image radio button is selected and click Import.
- Click where you want to place the top-left corner of the image, and click again to place the lower-right corner, which scales the image.
- (Optional) Select Camera > Standard Views > Top to get a top view of your image. If you choose this step, also be sure to switch to Parallel Projection as well.
- Select a drawing tool to start tracing the image. The Line tool is a popular choice.
If precision is important to you, use a line in your model to scale the drawing. Ip cam web server free.
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In the following video, you see two examples of tracking an image to create a floorplan. The first example is a napkin sketch; the second is a drawing plan with precise measurements.
