viewpt-dcl.md — Viewport Configuration¶

File: viewpt.dcl
Version: v3.60
Category: Dialog Definitions
Size: 6.1 KB (185 lines)

Note

Drawing View Configuration

Configure drawing viewports including view selection, scale, orientation, and layout for multi-view panel drawings and sheet composition.

Functional Purpose¶

Viewport Configuration - Manages drawing views and viewports for displaying panels from multiple angles (elevation, plan, sections) at appropriate scales on drawing sheets.

Key Functions:

View selection (elevation, plan, section, isometric)
Scale setting (1/4”, 1/2”, 3/4”, etc.)
Viewport layout (position on sheet)
View orientation (front, back, left, right, top, bottom)
Display control (what layers/features visible)
Multi-view coordination (aligned views)

Typical Workflow¶

1. User creates panel drawing
2. User opens viewpt-dcl (View ? Configure Viewports)
3. User adds Viewport 1:
   • Type: Front Elevation
   • Scale: 1/4" = 1'-0"
   • Position: Center of sheet
   • Show: All layers
4. User adds Viewport 2:
   • Type: Section A-A
   • Scale: 1/2" = 1'-0"
   • Position: Below elevation
   • Show: Rebar, embeds visible
5. User adds Viewport 3:
   • Type: Plan View
   • Scale: 1/4" = 1'-0"
   • Position: Upper right
6. Viewports arranged on sheet
7. Sheet ready for plotting

Control Semantics¶

Viewport Configuration¶

View Type:

vp_type - View dropdown:
- Front Elevation (most common)
- Back Elevation
- Left/Right Side Elevation
- Top View (Plan)
- Bottom View
- Section (specify cutting plane)
- Isometric (3D view)
- Detail (enlarged portion)

Scale:

vp_scale - Drawing scale:
- 1/8” = 1’-0” (small, overview)
- 1/4” = 1’-0” (standard panel elevation)
- 3/8” = 1’-0”
- 1/2” = 1’-0” (standard details)
- 3/4” = 1’-0”
- 1” = 1’-0”
- 1-1/2” = 1’-0” (large details)
- 3” = 1’-0” (very large, connections)

Position:

vp_x, vp_y - Viewport position on sheet
vp_width, vp_height - Viewport size
vp_center - Auto-center on sheet
vp_align - Align with other viewports

Display Control¶

Layer Visibility:

vp_layers - Layer control per viewport:
- All layers visible (typical)
- Select layers (custom)
- Hide reference layers (cleaner view)

Feature Display:

vp_show_rebar - Show reinforcement
vp_show_embeds - Show embed plates
vp_show_dims - Show dimensions
vp_show_notes - Show text/notes
vp_show_grid - Show reference grid

Line Control:

vp_lineweight - Override lineweights:
- Use layer settings (typical)
- Plot style override
- Custom weights

Standard View Layouts¶

Single View (Simple)¶

???????????????????????????????????????
?                                     ?
?                                     ?
?        Front Elevation              ?
?        Scale: 1/4" = 1'-0"          ?
?                                     ?
?                                     ?
?                                     ?
???????????????????????????????????????

Elevation + Section (Common)¶

???????????????????????????????????????
?        Front Elevation              ?
?        Scale: 1/4" = 1'-0"          ?
???????????????????????????????????????
?   Section A-A     Section B-B       ?
?   Scale: 1/2"     Scale: 1/2"       ?
???????????????????????????????????????

Multi-View (Complete)¶

???????????????????????????????????????
?  Front Elevation ?   Plan View      ?
?  Scale: 1/4"     ?   Scale: 1/4"    ?
???????????????????????????????????????
?  Section A-A     ?   Detail 1       ?
?  Scale: 1/2"     ?   Scale: 1"      ?
???????????????????????????????????????

Scale Guidelines¶

Panel Elevations¶

Scale Selection:

Panel Size       Recommended Scale
< 10' tall      1/4" = 1'-0"
10'-20' tall    1/4" or 1/8"
> 20' tall      1/8" = 1'-0"

Criterion: Fit on sheet with room for notes
Standard sheet: 24" × 36" (Arch D)

Sections¶

Scale Selection:

Section Type       Recommended Scale
Overall section    1/4" = 1'-0"
Detail section     1/2" or 3/4"
Connection detail  1" or 1-1/2"
Weld detail        3" = 1'-0"

Criterion: Show necessary detail clearly

Details¶

Scale Selection:

Detail Type              Recommended Scale
General assembly         1/2" = 1'-0"
Connection close-up      1" = 1'-0"
Rebar placement          1-1/2" = 1'-0"
Weld joint               3" = 1'-0"

Larger scale = More detail visible

Viewport Alignment¶

Aligned Views (Professional)¶

Front Elevation:
??????????????????
?                ? ? Aligned
?   [Panel]      ?
?                ?
??????????????????
        ? Aligned vertically
Section A-A:
??????????????????
?   [Section]    ?
??????????????????

Alignment creates clean, organized drawing

Projection Lines¶

Show Relationships:

Plan View:    [Rectangle]
              ? Projection
Elevation:    [Panel with height]
              ? Projection
Section:      [Cut through detail]

Dashed lines connect views (optional)
Shows spatial relationship

Multi-Sheet Coordination¶

View Distribution¶

Sheet 1 (A-301):
- Front Elevation (main view)
- General notes
- Panel schedule

Sheet 2 (A-302):
- Section details (4-6 sections)
- Connection details
- Enlarged details

Sheet 3 (A-303):
- Rebar details
- Embed plate details
- Installation notes

Cross-reference with detail bubbles:
"See Detail 3/A-302" = Detail 3 on Sheet A-302

Integration¶

Called By:

View menu ? Configure Viewports
Sheet setup
Layout manager

Generates:

Viewport objects in layout space
View-specific layer freezing
Scale-specific text sizing

Coordinates:

Multiple views on same sheet
Detail references
Section cut lines

Best Practices¶

View Selection:

? Front elevation essential (always include)
? Sections at critical areas (connections, openings)
? Plan view if orientation unclear
? Details as needed (not overcrowding)

Scale:

? Consistent scales when possible (1/4” typical)
? Larger scale for more detail (but fewer views fit)
? Note scale prominently (below each view)
? Verify text readable at scale

Layout:

? Align views vertically/horizontally
? Leave space for dimensions, notes
? Logical flow (top to bottom, left to right)
? Group related views together

Common Mistakes:

? Scale too small (can’t read dimensions)
? Scale too large (doesn’t fit on sheet)
? Views not aligned (looks unprofessional)
? Missing scale notation (critical error!)
? Too many views (cluttered, confusing)

CAD Viewport vs Paper Space¶

Model Space:

Full-size model (1:1 scale)
All geometry at actual size
Panel: 12' × 10' = 144" × 120" actual

Paper Space (Layout):

Viewports display model at scale
Viewport 1: Shows model at 1/4" scale
  12' panel = 3" on paper
Viewport 2: Shows same model at 1/2" scale
  12' panel = 6" on paper

Same geometry, different views/scales

Documentation Metadata¶

Enhancement Status: ? COMPREHENSIVE - ENHANCED [18/23 v3.60 remaining ? 38/42 COMPLETE]

End of Document