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iPOGO V5 Help Manual On-Line |
Group: |
17) Corner Utilities |
Methodology | |
| Command: | -17 |
| Alpha Alias: | Define Corners |
| Description: | Defines rear lot corners for automatic point intersection with subsequent commands |
| Data Format: | -17 Rear-Point Rear-Point {[Rear-Point] ..} ; |
| Problem: | Given the points and lines defining the outside boundary and access right-of-way for a proposed subdivision. Define the outside boundary points to be automatically intersected with other computing commands and compute a 37 lot subdivision as shown in the example data file below. |
| Solution: | $ (points in graphic image) -17 6 7 8 9 ; $ (points in example subdivision data file below) -17 6 1 2 9 19; |
Data Description
| Command | -17 | Defines rear lot corners for automatic point intersection with subsequent commands.
To automatically compute and store rear lot intersections, execute the -17 command before using the computing comands 1, -1, 1.2, 1.4, 2, -2, 2.2 and -2.2. While the -17 command is active, use these commands to compute the front lot corners and have the rear lot corners intersected radially. The new points will be numbered automatically from the first front lot corner set. Front lot corners are numbered in increasing increments of two. Point numbers for rear lot corners are numbered one greater than the point numbers for their companion front lot corners. Note: Commands 3, 4, and 5 can be used while the -17 command is defined but will not produce rear lot corner intersections from points computed by these commands. You cancel the definition of the rear lot corners resulting from a -17 command in one of two ways. Enter another -17 command which defines a new set of rear lot corners, or enter -17 ; with no lot corners included. |
| Rear-Point
{[Rear-Point]..} | 6
1 2 9 19 | Point numbers of previously computed points which define the rear lot corners in sequence. All rear lines defined with this command must be straight. |
| End Command | ; | All commands end with a semi-colon. |
Example Command File
$ Example command file for the -17
$ (DEFINE CORNERS) command
$ set initial points for outside boundary
0 1 10000 10000 ;
1 2 1 -1 45 0 0 1000
-2 67 0 0 450
-3 42 0 0 880
-3 3 0 0 1000
-4 87 0 0 500 ;
$ set control for road alignment using 2e9 to
$ calculate half the distance
1 7 5 5 6 2e9 5 6 0 ;
1 8 4 4 1 2e9 4 1 0 ;
1 9 3 3 2 2e9 3 2 0 ;
$ set road alignment and right of way
11 50 10 7 8 9 800 0 ;
$ intersect of right-of-way lines
$ with the outside boundary
3.1 17 11 11 7 25 5 5 6 0 11 11 7 -25 ;
$ set lot line and center cul-de-sac
1 19 9 9 8 200 -9e9 50 ES ;
$ set cul-de-sac
12 21 25 50 25 50 12 20 ;
$ use the -17 command to define the rear property
$ lines along the west boundary
-17 6 1 2 9 19;
$ compute lot corners along left side of road
$ with 100' lots at a 40' brl
1.4 101 100 -40 -40
17 15 10.1 16 25 26.1 24 20.1 19;
$ use the -17 command to define the rear property
$ lines along the east boundary
-17 5 4 3;
$ compute lot corners along right side of road
$ with 100' lots at a 40' BRL
1.4 139 100 40 40
18 13 10.1 14 22 21.1 23 20.1 19;
$ Reset the rear corner definition
-17 ;
$ define the feature code parameters
$ cmd fea layer color style thickness
15.1 bdy bdy 1 1 1000;
15.1 rw rw 2 1 500;
15.1 lot lot 3 1 100;
15.1 cl cl 4 1 100;
$ turn plotting on
91 ;
$ activate the bdy feature and inverse the boundary
15 bdy;
100 Boundary ----------------------------;
-7 1 1 -6 1;
$ activate the rw feature and inverse the right-of-way
15 rw;
100 Street ROW Dedication ---------------;
7 1 17 15 10.1 16 25 26.1 24 -20.1
23 21.1 22 14 10.1 13 18 17;
$ activate the lot feature and inverse the lots
$ with repeating feature description
15 lot;
15.2 "Section 1 - Lot ";
7 100 17 6 102 101 17;
7 101 101 102 104 103 101;
7 102 103 104 106 105 103;
7 103 105 106 108 107 105;
7 104 107 108 110 109 107;
7 105 109 110 112 111 109;
7 106 111 112 114 113 111;
7 107 113 114 116 115 10.1 15 113;
7 108 115 116 118 117 10.1 115;
7 109 117 118 120 119 10.1 117;
7 110 119 120 1 122 121 10.1 119;
7 111 121 122 124 123 10.1 121;
7 112 123 124 126 125 10.1 123;
7 113 125 126 128 127 16 10.1 125;
7 114 127 128 130 129 127;
7 115 129 130 132 131 129;
7 116 131 132 134 133 131;
7 117 133 134 136 135 20.1 24 26.1 25 133;
7 118 135 136 2 9 19 20.1 135;
7 119 19 9 3 172 171 20.1 19;
7 120 171 172 170 169 22 21.1 23 20.1 171;
7 121 169 170 168 167 169;
7 122 167 168 166 165 167;
7 123 165 166 164 163 165;
7 124 163 164 162 161 10.1 14 163;
7 125 161 162 160 159 10.1 161;
7 126 159 160 4 158 157 10.1 159;
7 127 157 158 156 155 10.1 157;
7 128 155 156 154 153 10.1 155;
7 129 153 154 152 151 13 10.1 153;
7 130 151 152 150 149 151;
7 131 149 150 148 147 149;
7 132 147 148 146 145 147;
7 133 145 146 144 143 145;
7 134 143 144 142 141 143;
7 135 141 142 140 139 141;
-7 136 139 140 5 18 139;
$ deactivate the repeating feature description
15.2 "";
$ activate the cl feature and inverse the centerline
15 cl;
100 Centerline Road;
7 1 7 11 10.1 12 20;