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Paper Space is intended as a page-layout or composition tool. You can manipulate viewports’ sizes, scale their view independently of one another, and even set layering and line-type scales independently. Let’s try manipulating the shape and location of viewports using the Modify toolbar options

1. Turn off Running Osnaps if it is on.
2. Click the bottom edge of the lower-left viewport to expose its grips (see the top image of Figure 12.35).
3. Click the upper-right grip and then drag it to the location shown in the top image of Figure 12.35.
4. Press the Ese key and then erase the lower-right viewport by clicking Erase in the Modify tool bar. Then click the bottom edge of the viewport.
5. Move the lower-left viewport so it is centered in the bottom half of the window as shown in the bottom image of Figure 12.35.

FIGURE 12.35: Stretching, erasing. and moving viewports

FIGURE 12.35:
Stretching, erasing. and
moving viewports

In this exercise you clicked the viewport edge to select it for editing. If while in Paper Space you attempt to click the image within the viewport, you will not select anything. Later you will see, however, that you can use the Osnap modes to snap to parts of the drawing image within a viewport

Viewports are recognized as AutoCAD objects so they can be manipulated by all the editing commands just like any other object. In the foregoing.exercise you \ moved stretched and erased viewports. Next, you’ll see how layers affect viewports

1. Create a new layer called Vport

2. Use the Properties dialog box to change the viewport borders to the Vport layer.
3. Finally turn off the Vport layer. The viewport borders disappear.
4. After reviewing the results of step 3, turn the Vport layer back on.
A viewport’s border can be’ assigned ‘a layer, color, line type, and even a line weight. If you put the viewport’s border on a layer that has been turned off or frozen, that border becomes invisible, just like any other object on such a layer. Making the borders invisible is helpful when you want to compose a final sheet for plotting.Even when turned off, the active viewport has a heavy border around it when you switch to floating model, and all the viewports still display their view

Disappearing Viewports

As you add more viewpoins to a drawing you may discover that some of them blank out even though you know you naven’t turned them off. Don’t Ranic. AutoCAD limits the number of viewports tha”;isplay their contents at any given time to 48 (A viewport that displays i~ contents is said to be active.) This limit is prd'{ided because too many active viewports can bog down a system jf you are using a slow computer with limited resources, you can lower this limit to 2 or 3 viewports to gain some performance, Then only 2 or 3′ viewports will di~play their contents. (All viewports that are turned on will still plot, regardless of whether their contents are visible or not.) Zooming into a blank.viewport restores its visibilitY thereby allovying you to continue to work with.enlarged Paper Spaceviews containing only a few viewports. The Maxactvp system ‘tI3riable contrclsthis value. Type Maxactvp and then enter tM number of viewports you want to have active at any given time.

Scaling Views in Paper Space

Paper Space has its own unit of measure. You have already seen how you are required to specify a paper size when opening a Layout tab to a Paper Space view When you first enter Paper Space, regardless of the area your drawing occupies in Model Space, you are given limits that are set by the paper size you specify ir the Page Setup dialog box. If you keep in mind that Paper Space is like a pastearea that is depen~ant on the printer you have configured for AutoCAD then difference of Scalebecomes easier to comprehend. Just as you might paste up photographs and maps representing several square miles onto an 11″x 17′ board so can you use Paper Space to·paste up views of scale drawings representing city blocks or houses on an 81/2″ x 11″sheet of paper. But in AutoCAD you have the freedom to change the scale and size of the objects you are pasting up.


While in Paper Space. you can edit objects in a Model Spaceviewport. but to do so. you must use Floating Model Space. You can then elide a viewport. and then edit Within that viewport. While in this mode objects that were created in Paper Space cannot be edited. View:> Paper Space brings you back to the Paper Space environment.

If you want to be able to print your drawing at a specific scale, then you must carefully consider scale factors when composing your Pape r Space pasteup.Let’s see how to put together a sheet in Paper Space and still maintain accuracy of scale.

1. Mcike sure you’re in Paper Space. Check to see if the word PAPER appears on the status bar. IfMODEL appears there, click that button to change it to PAPER.
2. Click the topmost viewport’s border to select it.
3. Right-click, then select Properties at the bottom of the – menu. The Properties dialog box appears.
4. Scroll down the liSt of properties until you see the Standard Scale listing.
5. Click the Custom setting next to the Standard Scale listing, then click the downward-pointing arrow that appears next to Custom to open the list.
6. Select 1/32″ = I’ from the drop-down list. Notice how the view in the top viewport changes.
7. Press the Ese key twice to clear the selection of the viewport.
8. Click the lower viewport border. The information in the Properties dialog box changes to reflect the properties of the newly selected viewport.
9. Click the Standard Scale Custom listing and open the drop-down list as you did in step 5. \ –
10. Select 3/16″ = I’ from the list. Notice that the view in the viewport changes to reflect the new scale (see Figure 12.36).

FIGURE 12.36: Paper Space viewport views scaled to 1/32" =t' and 3/16"=1 '

FIGURE 12.36:
Paper Space viewport views
scaled to 1/32″ =t’ and
3/16″=1 ‘

It’s easy to adjust the width, height, and location of the viewports so that they display only the parts of the unit you want to see. While in Paper Space, use the Stretch, Move, or Scale command to edit any viewport border or just use the viewport’s grips to edit its size. The view Within the viewport itself remains at the same scale and location while the vie.wport changes in size. You can move and stretch viewports with no effect on the size and location of the objects within the view.

If you have a situation where you need to overlay one drawing on top of another you can overlap viewports. Use the Osnap overrides to select geometry within each viewport even while in Paper Space. This allows you to align one viewport on top of another at exact locations.

You can also add a title block in Paper Space at a 1:1 scale to frame your viewports and then plot this drawing from Paper Space at a scale of 1:1.Your plot appears just as it does in Paper Space at the appropriate scale. Paper Space provides a dashed line to show you where the nonprintable areas occur near the edge of the paper.

While working in Paper Space pay close attention to whether you are in Paper Space or Floating Model Space mode. It is easy to accidentally perform a pan or zoom within a Floating Model Space.viewport when you intend to pan or zoom your Paper Space view. This can cause you to lose your viewport scaling or alignment with other parts of the drawing. It’s a good idea to save viewport views using View> Named Views in case you happen to accidentally Change a viewport view

Another way to prevent your viewport view from being accidentally altered is to turn on View Lock. To do this while in Paper Space click a viewport border. Right-click to open the popup menu, then select View Lock >- On. Once locked you cannot pan or zoom a viewport view. You also cannot change the size of the viewport. This setting is also available in the viewport’s Properties dialog box.

Setting Layers in Individual Viewports

.Another unique feature of Paper Space viewports is their ability to freeze layers independently. You could, for example, display the usual plan information in the overall view of a floor but show only the walls in the enlarged view of one unit.

You control viewport layer visibility through the Layer Properties Manager dialobox. You may have noticed that there are three sun icons for each layer listing.

You’re already familiar with the sun icon farthest to the left. This is the Freeze/ Thaw icon that controls the freezing and thawing of layers globally. Just to the right of that icon is a sun icon with a transparent rectangle. This icon controls the freezing and thawing of layers in individual viewports. The next exercise shows  you firsthand how it works.

1. Click the PAPER button on the status bar to go to Floating Model Space.
2. Activate the lower viewport.
3. Open the Layer Properties Manager dialog box.
4. Locate the COMMON WALL layer then click its name to help you isolate this layer.


The Cur VP and New VP options in the Layer Control dialog box cannot be used while you are in tiled Model Space

Click the column labeled Active VP Freeze for the selected layer. The Active VP Freeze column is the second column from the right side of the dialog box. The icon looks like a transparent rectangle over a sun. Once you’ve clicked the icon, the sun changes ihto a snowflake telling you that the layer is now frozen for the current viewport.

Click OK The active viewport regenerates with the Wall layer of the Common Xref made invisible in the current viewport. However, the walls remain visible in the other viewport (see Figure 12.37).

After reviewing the effects of the Active VP Freeze setting, go back to the Layer Properties Manager and thaw the COMMON IWALL layer by clicking its Active VP Freeze icon again so it tums bask into a sun.

Click OK to exit the dialog box.

FIGURE 12.37: The drawing editor with the Walll~yer turned off in the active viewport

FIGURE 12.37:
The drawing editor with the
Walll~yer turned off in the
active viewport

You might have noticed another similar sun icon next to the one you used in the previous’ exercise. This icon shows an opaque rectangle over the sun. This icon controls layer visibility in any new viewports you might create next rather than controlling existing Viewports.

If you prefer you can also use the Layer Control popup list in the toolbar to freeze layers in individual viewports. Select the layer from the list, and then click the same sun icon with the sma1lrectangle below it. Now save and exit the Xref-l me

This section concludes the apartment building tutorial. Although you haven’t drawn the complete building, you’ve already learned all the commands and techniques you need to do so. Figure 12.38 shows you a completed plan of the first floor to complete your floor plans and get seme practice using AutoCAD you may want to add the symbols shown in this figure to your Plan file:

Since buildings like this one often have tke same 1’1aI)Sfor several floors the plan for the second floor can also represent the third floor. Combined with the first floor this gives you a three-level apartment building. This project might also have a ground-level garage which would be. separate file. The Co1-g r; d .dwgfile can be used in the garage file as a reference for dimensions. The other symbols can be
blocks stored as files that can be retrieved in other files.

FIGURE 12.38:

FIGURE 12.38:

The first image of the two graphics in this sidebar shows a Paper Spaceview of a drawing  from the San Francisco Main Library csnstruction document set. This particular sheet”  shows the floor pattern layout of some.of the main circulation areas.

The title block is inserted in Paper Spaceas a block, rather than as an Xref. This was dona because each drawing has unique drawing title information that is kept as attribute data m the title block. The attributes can be easily updated from a dialog D0X The plan drawings are xrefs inserted into Model Space, with Paper Space viewports displaying selected areas.The viewport borders are turned on in this view to show how they  are arranged. These borders are turned off when the drawing is plotted.  Notice that the grid reference symbols are in their own viewport adjacent to the main enlarged floor plan. Theseadjacent grid viewports display portions ol the drawing.that are actually some distance away from the floor plan shown in the main  viewport. The second image In this sidebar shows the overall floor plan with the viewport areas outlined. Here .” you can see that the column grid symbols are actually at the edge of the drawing. This example shows how viewports helped the creator of this drawing reuse existing data. I! d chance is made to the overall plan including the columng ands the enlarged plan of the entry is automatically updated

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