Casos de prueba

In order to scale a drawing accurately, you select an object with a known dimension to use as the baseline segment. Because the south entry door is known to be 1830 millimeters wide, you enter the value, and then draw the segment that represents that value.

6. On the canvas, trace the width of the south entry door as the baseline segment by clicking to specify the start point and clicking again to specify the end point.

Tip: To draw a line that is perfectly horizontal or vertical, press and hold SHIFT while drawing.

QTO records the measured length of the segment and calculates the scale of the drawing. If you change the length or unit of measure of the baseline segment, the scale calculation updates dynamically.

7. Click OK.

In the Document Properties dialog, the calculated scale displays as the value for Custom Scale.

8. Click OK. Using Automatic Takeoff Tools

Use automatic takeoff tools to create takeoff for objects in 3D models and 2D sheets. Automatic takeoff tools use the design data from the publishing application to create takeoff, rather than measuring drawing geometry as manual takeoff tools do.

Using the Model Takeoff Tool

Model takeoff is available only for 3D models. You can perform model takeoffs on multiple models in a project. If the project contains matching 2D sheets, these sheets are marked up and cross-referenced.

When you perform a model takeoff, QTO extracts the object tree from the 3D model and places it in a group on the Takeoff palette. The first time you use the tool, all items in the group have an Undefined item type. When you define the item types, you create valid takeoff for those items and objects, and your selections are used to predictively assign item types during subsequent uses of the tool.

In previous exercises, you created the hierarchy for your takeoff project and created items with cost and dimension data. In this exercise, you perform a model takeoff, and then you define objects from the model to populate your takeoff structure with data.

Perform a model takeoff:

1. On the Documents palette, expand QTO Dormitory Revit 3D DWF, and select QTO Dormitory Model. 2. On the toolbar, click (Model Takeoff).

3. Click the model on the canvas to start the takeoff.

You can also perform a model takeoff by clicking Takeoff menu Model to start the takeoff immediately.

4. When a dialog prompts you that the takeoff is complete, click Close.

The object tree that populated the Model palette when you imported the 3D model is now added to the Takeoff palette.

Define the model takeoff data:

5. Open the Takeoff palette, and locate the QTO Dormitory Model group. The QTO Dormitory Model group holds all of the model takeoff data.

6. On the palette title bar, click .

7. Put the cursor over the boundary on the right side of the palette.

8. When the cursor changes to a double-headed arrow, drag the boundary until all of the dimension columns are visible.

Objects created through model takeoffs and other automatic tools are quantified when their item type is defined and at least one dimension is mapped. Pinning and resizing the Takeoff palette can help you work more efficiently as you define model takeoff results.

9. Under QTO Dormitory Model, expand Doors M_Bifold-4 Panel 1220 x 2134mm to display the door object (M_Bifold-4 Panel).

The object is Undefined. Only defined objects are measured and counted in QTO. Next, you define the door object by dragging it to a defined item on the Takeoff palette.

QTO generates quantities for model objects by extracting their embedded design data and mapping it to dimensions in the catalog. As you work, notice that some dimensions are mapped automatically, based on item type. The item type defines the primary dimension of the item; for example, by default, Linear items are mapped to Length. Each dimension is also mapped to a default object property, which is the property that is measured during takeoff. Default object properties are specified on the Mapping tab

of the Preferences dialog. By default, linear objects are mapped to the Length property. Therefore, if a linear object contains a Length property; the length of the object is measured and reported during takeoff.

Some Linear objects, such as interior walls, have additional linear properties, such as Width and Unconnected Height. When additional properties are available for an object, they display in the dimension columns. You can select a different property to change the property that is measured during takeoff.

Some objects do not contain the default property. In this case, the primary dimension value is Undefined on the Takeoff palette and no measurement can be generated for the object. By specifying a property for the primary dimension, you can generate a takeoff measurement for the object. If an object does not contain a mappable property, you must enter an override in the Workbook to create a measurement for the object. Later in this exercise, you select a property for Stair objects that do not contain the default Length property.

10. Drag M_Bifold-4 Panel to Interiors Interior Doors Door, Bifold-4 Panel, 1220 x 2134mm. Notice that when you put the cursor over the group and subgroup, they expand.

11. Expand Door, Bifold-4 Panel, 1220 x 2134mm.

The door object inherits the Count item type from the bifold door item, and the values in the dimension columns remain Undefined. Count objects do not require any dimensions to be mapped. 12. Under QTO Dormitory Model, under Doors, expand M_Single-Flush 0762 x 2032mm, and drag the door

object (M_Single-Flush) to Interiors Interior Doors Door, Single-Flush, 762 x 2032mm.

The door object inherits the Count item type from the single-flush door item, creating a measurable takeoff object. Next, you define multiple takeoff objects.

13. Under QTO Dormitory Model, under Doors, expand Single-Flush 0915 x 2134mm, select the first door object, press and hold SHIFT, and select the last door object.

14. Drag the door objects to Interiors Interior Doors Door, Single-Flush, 915 x 2134mm. The door objects are now measurable takeoff objects.

15. Using the same method, drag the M_Single-Flush Vision door objects to the appropriate items in Interiors Interior Doors.

16. Continue defining the Undefined objects from the model takeoff data by moving objects to the appropriate defined items, using the following table as a guide:

Examples

Move the Undefined objects in this location: To the appropriate takeoff item

in this group: Type

• Ceilings Compound Ceiling 600 x 600mm Grid

• Ceilings Compound Ceiling 600 x 1200mm Grid Interiors Ceiling Finishes Area • Ceilings Compound Ceiling Plain Interiors Ceiling Finishes Count • Doors M_Double-Flush1730 x 2134mm

• Doors M_Double-Glass 2 1830 x 2134mm Exterior Exterior Doors Count • Floors Floor Concrete-Commercial 362mm

• Floor LW Concrete on Metal Deck Exterior Floor Construction Area • Specialty Equipment M_Electric Lift-wall based 1300 x

950mm Mechanical Elevator Count

• Roofs Basic Roof Warm Roof - Timber Exterior Roof Construction Area • Walls Basic Wall Exterior - Brick on Mtl. Stud Exterior Exterior Walls Linear • Walls Basic Wall Interior - 108mm Cavity Wall

• Walls Basic Wall Interior - 155mm Partition (2-hr)

Note: Do not move the objects for Basic Wall Interior - 124mm Partition (1-hr). They will be moved in the next exercise.

Interiors Partitions Linear

Define a wall assembly object:

17. On the Documents palette, verify that QTO Dormitory Model is selected. The takeoff you defined for the model displays in the Workbook. 18. In the Workbook, click the Interiors tab, and expand Partitions.

19. On the Takeoff palette, under QTO Dormitory Model Walls Basic Wall Interior - 124mm Partition (1-hr), select one wall object.

20. Drag it to Interiors Partitions Wall, Interior, 50 x 150mm Wood Stud Assembly.

The object inherits the Linear item type, and the Length value is mapped automatically. The item quantity and costs are updated in the Workbook.

Modify the Workbook display:

21. In the Workbook, on the Interiors tab, under Partitions, expand Wall, Interior, 50 x 150mm Wood Stud Assembly.

22. Right-click in the column header area of the Workbook, and select Remarks.

The Remarks column is now hidden. Only the Description and Quantity 1 columns are displayed. 23. Right-click in a blank area of the column header, and select Material Cost.

The Material Cost column displays to the right of the Quantity 1 column.

24. Use the same method to display the Labor Cost, and Total Cost columns to the right of the Material Cost column.

The Workbook displays the quantities and costs for the wall assembly and its component items in the summary view.

Define the remaining wall assembly objects:

25. On the Takeoff palette, select all of the remaining Interior - 124mm Partition (1-hr) wall objects, and drag them to the wall assembly item.

View the detailed object data:

27. Double-click the wall assembly item.

The detail view of the Workbook displays. The item displays at the top of the view, and the detailed object data associated with the item is indented below it.

28. Scroll through the object data.

29. Click (Back) in the upper-left corner of the Workbook to return to the summary view. Filter the takeoff data:

This filter limits the takeoff data to only undefined items and objects, so you can quickly locate the takeoff data that still needs to be defined. Note that all undefined data is in the model takeoff results, which you finish defining in this exercise.

31. Click the Filter list, and select View All.

The default view of the Takeoff palette is restored. In the previous steps, you defined model takeoff data by dragging Undefined objects to defined items on the Takeoff palette. Next, you define the remaining model takeoff data by specifying item types and dragging the defined items to groups on the Takeoff palette.

Finish defining takeoff data:

32. On the Takeoff palette, under QTO Dormitory Model Topography Surface, select Model Takeoff. This is the default name given to an unnamed item when the embedded data is extracted from the model.

33. Click the item name to enter editing mode, and then enter Dormitory Land Surface, and press ENTER.