FM Tute M02 MI Define Roughness: Difference between revisions

*'''2d_mat_FMT_M02_DEV_0012d_mat_FMT_M02_DEV_001_R.mid''', and

*'''2d_mat_FMT_M02_DEV_Buildings_0012d_mat_FMT_M02_DEV_Buildings_001_R.mid'''.

<li>Open both layers in the current view in MapInfo. The '''2d_mat_FMT_M02_DEV_0012d_mat_FMT_M02_DEV_00_R''' layer contains polygons defining grassed areas and roads within the proposed development. The '''2d_mat_FMT_M02_DEV_Buildings_0012d_mat_FMT_M02_DEV_Buildings_001_R''' layer contains polygons defining the buildings within the proposed development.

<li>The materials attribute for a number of polygons representing proposed roads in the '''2d_mat_FMT_M02_DEV_0012d_mat_FMT_M02_DEV_001_R.mid''' layer have not been assigned and will need to be populated. Assign a Material ID of 2 to these polygons as shown in the figure below. Leave the remaining larger polygon with a Material ID of 1.<br>

All polygons within the '''2d_mat_FMT_M02_DEV_Buildings_0012d_mat_FMT_M02_DEV_Buildings_001_R''' layer represent the buildings of the proposed development and will have the same Material ID of 3. Make use of the ‘Update Column’ feature to automatically assign this value to all objects at the same time. Select the dropdown menu ''Table > Update Column''. Select '''2d_mat_FMT_M02_DEV_Buildings_0012d_mat_FMT_M02_DEV_Buildings_001_R''' as the ‘Table to Update’ and ‘Material’ as the ‘Column to Update’. Type 3 in the Value field. Click OK when done. Viewing the '''2d_mat_FMT_M02_DEV_Buildings_0012d_mat_FMT_M02_DEV_Buildings_001_R''' layer within a Table Browser should confirm that a value of 3 for the attribute ‘Material’ has been assigned to all objects. <br>

<li>Save and export both '''2d_mat_FMT_M02_DEV_0012d_mat_FMT_M02_DEV_001_R''' and '''2d_mat_FMT_M02_DEV_Buildings_0012d_mat_FMT_M02_DEV_Buildings_001_R''' layers in MID/MIF format.