Changes between Version 12 and Version 13 of Grass7/TemporalGISAlgebra

Timestamp:

07/05/13 08:26:25 (12 years ago)

Author:

huhabla

Comment:

--

Grass7/TemporalGISAlgebra

@@ -118 +118 @@
 }}}
 
+All supported operators and functions are documented below.
+
 == Temporal Vector Algebra ==
 
@@ -160 +162 @@
 The temporal vector algebra provides point, line and area buffer functions in addition to the operators.
 
-
-
-= Overview of all temporal algebra elements =
+All supported operators and functions are documented below.
+
+== Temporal Raster Algebra ==
+
+The temporal raster algebra uses all operators and functions of the temporal 
+algebra and adds a subset of the operators and function of r.mapcalc.
+
+The method is the same as for the temporal vector algebra. 
+Hence new spatio-temporal operators are defined that include temporal topology relations, 
+temporal operators and spatial operators.
+
+
+Examples:
+Create the sum all maps from STRDS A and B that have equal time stamps and store the new maps in STRDS C.
+{{{
+C = A + B
+}}}
+Same expression with explicit temporal topology and temporal interval processing operators. 
+{{{
+C = A {equal,=+} B
+}}}
+Select all cells from STRDS B with equal relations to STRDS A if the cells of A are in the range of [100.0, 1600] of time intervals that have more then 30 days
+{{{
+C = if(equal, (A > 100 && A < 1600) {equal,&&} td(A) > 30, B)
+}}}
+
+All supported operators and functions are documented below.
+
+= Overview of all supported spatio-temporal operators and functions =
 
 == Temporal topology relations ==
@@ -573 +601 @@
  ---------------------------------------
 }}}
-
-Examples:
-Create the sum all maps from STRDS A and B that have equal time stamps and store the new maps in STRDS C.
-{{{
-C = A + B
-}}}
-Same expression with explicit temporal topology and temporal interval processing operators. 
-{{{
-C = A {equal,=+} B
-}}}
-Select all cells from STRDS B with equal relations to STRDS A if the cells of A are in the range of [100.0, 1600] of time intervals that have more then 30 days
-{{{
-C = if(equal, (A > 100 && A < 1600) {equal,&&} td(A) > 30, B)
-}}}