Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
|
load_map [2012/09/03 15:23] admin |
load_map [2013/09/13 21:02] admin [Notes] |
||
|---|---|---|---|
| Line 13: | Line 13: | ||
| ^ Name ^ Type ^ Description ^ Default Value ^ | ^ Name ^ Type ^ Description ^ Default Value ^ | ||
| - | | Load As Sparse | [[Bool Type|Bool]] | If true, the map is loaded as a sparse image. Sparse images have the advantage of storing only the cells containing non-null values, but they have worse access time. | False | | + | | Null Value | [[Null Value Type|Null Value]] | Additional value used to represent null cells. Cells with such value are also treated as null cells. This is particularly useful for assigning a null value to image files that do not have this definition. | None | |
| - | | Define Null Value | [[Bool Type|Bool]] | This flag forces the cells with the same value of the "Null Value" parameter to be treated as a null cells. This is particularly useful for assigning a missing null value to a GeoTiff data. | False | | + | | Load As Sparse | [[Bool Type|Bool]] | If true, the map is loaded as a sparse image. Sparse images have the advantage of storing only the cells containing non-null values, but they have worse access time. | False | |
| - | | Null Value | [[Int Type|Int]] | Value used to represent null cell. The "Define Null Value" flag must be set in order to define a null value. This is particularly useful for assigning a missing null value to a GeoTiff data. | 0 | | + | | Suffix Digits | [[Non Negative Int Type|Non Negative Int]] | Number of digits used to represent the image file name suffix. | 0 | |
| - | | Suffix Digits | [[Non Negative Int Type|Non Negative Int]] | Number of digits used to represent the image file name suffix. If the "step" input is unbound, this options is ignored. | 0 | | + | |
| | Step | [[Non Negative Int Type|Non Negative Int]] | Current step or model iteration. Files with the same name and numbered suffixes will be loaded sequentially according to the model step. | None | | | Step | [[Non Negative Int Type|Non Negative Int]] | Current step or model iteration. Files with the same name and numbered suffixes will be loaded sequentially according to the model step. | None | | ||
| | Workdir | [[Workdir Type|Workdir]] | Workdir folder path. | None | | | Workdir | [[Workdir Type|Workdir]] | Workdir folder path. | None | | ||
| - | |||
| ===== Output ===== | ===== Output ===== | ||
| Line 31: | Line 29: | ||
| ===== Notes ===== | ===== Notes ===== | ||
| - | Readable formats: ers ([[ermapper_format|ERMapper raster]]) tiff/tif (GeoTiff) and asc (ArcView ASCII). | + | See also [[Load Categorical Map]] for loading maps whose cells represent categories. |
| - | + | ||
| - | Coordinate systems supported for translation in ERMapper format: Geodetic (WGS 84, SAD69, NAD27, Corrego Alegre) and UTM (WGS84, SAD 69, NAD27, Corrego Alegre). | + | |
| - | + | ||
| - | When a coordinate system is not supported, LOCAL projection and datum WGS84 are assumed. For ArcView ASCII, LOCAL projection and datum WGS84 are always assumed. | + | |
| - | + | ||
| - | All Geotiff coordinate systems are supported if translation is not needed. | + | |
| - | + | ||
| - | When GeoTiff cell dimension is not found, a 100 meter resolution is assumed. (FIXME ERMapper?) | + | |
| - | It is only possible to load maps represented by 8, 16 or 32 bits per cell. Other cell types are not supported. | + | If the "Null Value" parameter is specified, any cell corresponding to the original null value of the map, if provided, is converted to the new null value. This ensures that values originally represented by null value still representing null values, even if the null value definition changes. Any non-null value corresponding to the newly defined null value is also promoted to new null value. |
| + | For a list of file formats that Load Map can load, the supported [[wp>Map_projection|projections]] and [[wp>Datum_(geodesy)|datums]], check the [[supported map formats#map_formats_supported_for_reading|supported map formats]]. | ||
| ===== Internal Name ===== | ===== Internal Name ===== | ||
| LoadMap | LoadMap | ||