Chapter 4 Space Planning and Mass Modeling

Objectives Create and modify 2D Extrusion and Freeform spaces using the SpaceGenerate and SpaceAdd tools Divide and combine spaces using the LineworkDivide and LineworkMerge Summarize the spaces and zones of the drawing with SpaceQuery, Zones, and Space Evaluation commands Create and edit mass elements and mass groups Create a Drape mass element and edit mass elements and groups

Space Geometries

Space Generate and SpaceAdd

Creating Spaces from Existing Floor Plans Choose SpaceAdd Set Create type to Generate Pick internal point

Analyzing Potential Spaces If no AEC objects or AutoCAD entities are defined to bound spaces in a drawing the Analyzing Potential Spaces dialog box shown at right can be used to set all visible objects to bound spaces or specify selected objects to bound spaces.

Bound Spaces by Linework Specify linework to bound spaces in the Properties palette of the entity

Convert a Sketch to Space

Edit Tools of the Non- Associative Space

Edit Tools of the Associative Space

Automatically Update of Associative Spaces Verify Automatically update associative spaces to bounding geometry is toggled on in the AEC Object Settings tab of Options. Change location of wall and space updates to fill to the wall Choose Update Space Geometry > All Associative Spaces from the shortcut menu to update all spaces if necessary

Steps to Placing Tags with Spaces Open Documentation Tool Catalog – Imperial > Schedule Tags > Room & Finish Tags. Click and drag the i-drop for a tag, e.g. Room Tag (w/ Dimensions), into the workspace; you will be prompted to select a space. Press ESC to end the command and import the property into the drawing. Choose a space tool from the Spaces palette. Edit the General section in the Design tab of the Properties palette as follows: Tag = Aec8_Space_Tag, Create type = Generate. Click inside a room defined by walls to specify the space. Space is created and tagged.

Inserting a Space Using Insert Create Type Choose Space from the Design palette edit the Properties palette, specify Create type = Insert Specify insertion point and rotation

Accessing SpaceAdd Choose Space from the Space flyout of the Build panel. or Choose Space from the Design palette.

Properties Palette of an Existing Space

Create Types Generate Insert Rectangle Polygon

AEC Modify-Trim (Select a non-associative space, right-click and choose AEC Modify>Trim.) Select the first point of the trim line or ENTER to pick on screen: (Select point p1.) Select the second point of the trim line: (Select point p2.) Select the side to trim: (Select a point near p3.)

AEC Modify-Divide (Select a non-associative space, right-click and choose AEC Modify>Divide.) Select the first point of the dividing line or ENTER to pick on screen: (Select a point near p1.) Select the second point of the dividing line: (Select a point near p2.) (Space is divided.)

AEC Modify-Subtract Select a non-associative space, right-click and choose AEC Modify>Subtract Select object(s) to subtract or NONE to pick rectangle: (Select the rectangle at p1.) Select object(s) to subtract or NONE to pick rectangle: ENTER (Press ENTER to end selection.) Erase selected linework? [Yes/No] : Y (Choose Yes to erase the space inside the rectangle.)

AEC Modify - Merge (Select a space, right-click and choose AEC Modify>Merge.) Select object(s) to merge or NONE to pick rectangle: 1 found (Select the space at p1.) Select object(s) to merge or NONE to pick rectangle: (Press ENTER to end selection. Erase selected linework? [Yes/No] : y (Choose Yes to erase boundary.)

AEC Modify - Crop (Select a space, right-click and choose AEC Modify>Crop.) Select object(s) to form crop boundary or NONE to pick rectangle: 1 found (Select the line at p1.) Select object(s) to form crop boundary or NONE to pick rectangle: (Press ENTER to end selection.) Erase selected boundary? [Yes/No] : Y (Choose Yes to erase all boundaries.)

AEC Modify - Array (Select the space, right-click and choose AEC Modify>Array.) Select an edge to array from or ENTER to pick two points: (Select a point at p1.) Drag out array elements or : p (Choose the down arrow and choose Pick array distance/Enter count.) Specify new array distance : (Choose the endpoint at p2.) Specify second point: (Choose the endpoint at p3.) Drag out array elements or : (Move cursor right to array space.)

Space Styles

Design Rules Net Offset Useable Offset Gross Offset Target, Minimum and Maximum Area of Space Length Width

Grips of Non-Associative Space

Inserting Zones Choose Zone from the Design palette After placing a zone you can attach other zones and spaces to the zone Zone includes total area of all attached zones

Adding a Zone Template Zone Template Links zone styles into a group

Accessing Space Evaluation

Space Evaluation Choose Space Evaluation from the Scheduling palette Area of floor, ceiling, and walls for each can be evaluated Evaluation created in form of text or Excel files

Creating a Freeform Space 1.View the building in plan view. All wall enclosing elements must be displayed in the workspace. 2.Choose Space Generate from the Design palette to open the Properties palette. 3.Edit Geometry Type to Freeform 4.Move the cursor to the workspace and left-click inside the building. Press ESC to end the command.

Accessing Mass Elements

Grips of Mass Elements

Using the Drape to Model Contours Select Drape from the mass element shapes flyout of the Build panel. Select objects representing contours: (Select the contour lines using a crossing window, select p1.) Specify opposite corner: (Select a point at p2.) Select objects representing contours: Enter (Press enter to end the command.) Erase selected contours [Yes/No] : Enter Generate regular mesh [Yes/No] : Enter Select rectangular mesh corner: (Select a point near p3.) Select opposite mesh corner: (Select a point near p4.) Mesh subdivision along X direction : Enter (Press enter to accept the default mesh size.) Mesh subdivision along Y direction : Enter Enter base thickness : 6 [150] Enter (Type 6 [150] to specify the base thickness.) The topography has been extrapolated.

Drape of Contours

Editing Mass Elements Trim by Plane- MassElementTrim Split by Plane – MassElementDivide Split Face – MassElementFaceDivide Join Faces– MassElementFaceJoin

Accessing Trim (MassElementTrim) Command prompt: MassElementTrim Select a mass element and choose Trim by Plane from the Modify panel The command (MassElementTrim) creates a trim plane that cuts across the element. You can then select which side of the trim plane to retain.

Trimming a Mass Element (Select a mass element and choose Trim by Plane from the Modify panel.) Specify trim plane start point or [3points]: (Select p1 using endpoint object snap as shown below.) Specify trim plane end point: (Select p2 using endpoint object snap as shown below.) Select mass element side to remove: (Select p3 using endpoint object snap as shown below.)

Accessing Split by Plane (MassElementDivide) Select the mass element, right-click, and choose Split by Plane The Split by Plane command (MassElementDivide) creates a cutting plane that cuts the mass element.

Splitting Mass Elements Select the mass element and choose Split by Plane from the Modify panel. Specify divide plane start point or [3points]: (Select point p1.) Specify divide plane end point: _mid of (Select point p2.)

Accessing Split Face (MassElementFaceDivide) (Select the mass element and choose Split Face from the Modify panel.) Select first point on face: _mid of (Select point p1.) Select second point on the same face: _mid of (Select point p2.) Gable converted to Free Form. Select first point on face: ~EnterKey~ (Press the ~EnterKey~ to end the command.) Note: The face at p3 was stretched after the split.

Creating Groups for Mass Elements Complex models are created by defining a group and attaching elements to the group. The Mass Group tool inserts a group marker, the group marker represents the group. Mass elements are attached to the group after the group marker is established.

Accessing the Mass Group Tool Command prompt: MassGroupAdd Select the Mass Group tool from the Massing tool palette

Creating a Mass Group (Select Mass Group from the Massing palette.) Select elements to attach: (Select a mass element.) Location: (Select a location in the workspace.) Attaching elements... 1 element(s) attached

Accessing Mass Group Attach Command Select any member of a mass group to display the mass group marker shown at right, right- click and choose Attach Elements. Respond to the workspace prompts to select additional mass elements.

Creating Mass Groups from the Mass Group Tab

Boolean Operations with Mass Elements Mass Elements that are attached to a group can be defined to add, subtract, or intersect their mass with the other elements. If a mass group exists in the drawing, the mass group and operation can be specified in the Properties palette when new elements are added. After a mass element becomes a member of a group all elements of the group and the group marker are displayed. To isolate and edit a mass element that belongs to a group select the Edit in Place grip. The Edit in Place toggle turns off the display of the group and allows you to edit mass elements.

Boolean Operations Union Subtract Intersect

Edit In Place of Mass Group

Creating Floor Plate Slices of Mass Elements After you develop a mass model of a building, you can create a floor plan from the model The Slice command (AecSliceCreate), located on the Massing tool palette, allows you to slice through the model at elevations equivalent to floor elevations. The AecSliceToPline command, accessed from the shortcut menu of the slice, can convert the slice to a polyline. The polyline can be converted to walls (right click a wall tool >Apply Tool Properties to>Linework).

Accessing the Slice Command Select Slice from the Massing tool palette

Applying the Slice Command (Select Slice from the Massing tool palette.) Number of slices : 2 enter First corner: (Select a point near point P1 shown at right.) Second Corner or [Width]: (Select a point near point P2 shown at right.) Rotation : enter (Press enter to accept the 0° rotation.) Starting height : 3’ enter Distance between slices : 9’ enter (Slice markers are created for each of the slices, as shown at right.)

Attaching Objects to a Slice The Attach Objects command (AecSliceAttach) is used to assign the objects to be sliced. Select a slice marker, right-click and choose Attach Objects

Accessing Convert to Polyline To convert the results of the slice to polyline Select a slice, right-click and choose Convert to Polyline The Convert to Polyline will convert a slice to a polyline. The polyline can then be used to create a wall.

Converting a Slice to a Polyline (Select the Slice, right-click and choose Convert to Polyline). (Polyline created from the slice. Polyline selected to display grips as shown at right.)