28. USING GROUP SPACINGS IN SPRAY OR TAPE BLOCKS
Posted: Fri Feb 03, 2012 3:52 pm
Do you know about a relatively new feature in IRRICAD which specifies the grouping of laterals? For example you could have a lateral row spacing of 2.7m, but after 10 laterals there is a larger gap of 5m before returning to the row spacing of 2.7m for the next group of 10 laterals and so on.
However, what if the grouping does not start at the edge of the block? What if the block starts with 5 rows at 2.7m apart, then a 5m gap, then 10 rows, then a 5m gap and 10 rows until the end of the block? The "User Defined" option specifies where IRRICAD is to begin drawing the set of 10 laterals.
1. Before your create your block, either by converting an existing polygon or drawing it, draw a temporary line where the first lateral of the first group of 10 will be placed inside the block (this is 15.8m from the edge of the block or from where the first lateral will be - a spacing of 4 laterals from the edge/first lateral plus 5m).
2. When drawing or creating the block the "Spacing" is 2.7m in this example, the "Group Spacing" is 5m and the "No. laterals/Group" is 10.
3. Select "User Defined" for the lateral direction.
4. When asked to show the lateral direction, draw the lateral overtop of the line placed in #1. You can use Snaps|Endpoint to be precise for both points.
5. IRRICAD will then start the groups of 10 from this point and therefore only have room to place 5 from this point back to the edge of the block.
6. You can remove the temporary line if you wish.
Note that if your irrigation block is existing and you wish to make changes to achieve the correct grouping, simply place the temporary line and use the "User Defined" option as specified above.
We hope you have found this helpful. If you have a tip you would like to share, please email your tip to Support@IRRICAD.com
However, what if the grouping does not start at the edge of the block? What if the block starts with 5 rows at 2.7m apart, then a 5m gap, then 10 rows, then a 5m gap and 10 rows until the end of the block? The "User Defined" option specifies where IRRICAD is to begin drawing the set of 10 laterals.
1. Before your create your block, either by converting an existing polygon or drawing it, draw a temporary line where the first lateral of the first group of 10 will be placed inside the block (this is 15.8m from the edge of the block or from where the first lateral will be - a spacing of 4 laterals from the edge/first lateral plus 5m).
2. When drawing or creating the block the "Spacing" is 2.7m in this example, the "Group Spacing" is 5m and the "No. laterals/Group" is 10.
3. Select "User Defined" for the lateral direction.
4. When asked to show the lateral direction, draw the lateral overtop of the line placed in #1. You can use Snaps|Endpoint to be precise for both points.
5. IRRICAD will then start the groups of 10 from this point and therefore only have room to place 5 from this point back to the edge of the block.
6. You can remove the temporary line if you wish.
Note that if your irrigation block is existing and you wish to make changes to achieve the correct grouping, simply place the temporary line and use the "User Defined" option as specified above.
We hope you have found this helpful. If you have a tip you would like to share, please email your tip to Support@IRRICAD.com