To create contour lines, TileLogic Office creates a regularly space grid representation (or model) of the field. This value is the X and Y spacing within the grid. It is recommended that this value be close to the actual survey performed when gathering data. Ex. A field survey data gathered on roughly 100' spacing, then select a value of 100' or possibly 75 or 125. The accuracy of the final contours, are largely dependant on how well dispersed the original survey was done.
Drop down selection of contour spacing options in feet, .5 to 5.0. This is the elevation change interval to place a contour line at. Ex. Select .5 to draw contour lines every .5 feet of elevation change.
This will (re)generate contour lines based on grid spacing & contour spacing. This is only necessary when initially creating or changing contour spacing / grid. Once generated, contour lines are persistent. Note that contours will only be generated for data on layers which are currently ON.
Percentage of line to label, 10 to 50 percent. Selecting the maximum 50% for example, will label all contour lines as the halfway point of each lines length, and 10% will label each line at every 1/10 the contour lines length. Select for best map display.
A drop down selection list, 2 to 10 for the major contour interval. If you have specfied for example 1 foot contour spacing, and select a major interval of 4, then every 4th contour line is considered a major interval, representing a 4 foot elevation change. Major interval lines can then be a different color, width or the only ones labeled, or any combination. This allows for ease of reading, especially when many elevations are represented.
