feat(rmtxop): Allow matrices to be read from another command

honeybee_radiance_command/_command.py

@@ -63,6 +63,7 @@
 """
 
 import warnings
+import os
 
 from .options import OptionCollection
 from ._command_util import run_command
@@ -125,6 +126,18 @@ def pipe_to(self, command):
             )
         self._pipe_to_command = command
         self.validate()
+
+    def enclose_command(self, stdin_input=False):
+        """Enclose command in quotes and exclamation point ('!'). This method should be 
+        used when reading the input of a command from another Radiance command.
+        
+        Example:
+        rmtxop -c 47.4 119.9 11.6 "!rmtxop view transmission daylight sky" > output
+        """
+        if os.name == 'posix':
+            return '\'!%s\'' % self.to_radiance(stdin_input)
+        else:
+            return '\"!%s\"' % self.to_radiance(stdin_input)
 
     def to_radiance(self, stdin_input=False):
         """Radiance command.

honeybee_radiance_command/rmtxop.py

@@ -100,7 +100,17 @@ def matrices(self):
 
     @matrices.setter
     def matrices(self, value):
-        self._matrices = typing.path_checker_multiple(value)
+        if value is not None:
+            if not isinstance(value, (tuple, list)):
+                value = [value]
+            # check if values are Radiance commands
+            if value and any([isinstance(v, Command) for v in value]):
+                self._matrices = [cmd.enclose_command() if isinstance(cmd, Command) else \
+                    typing.path_checker(cmd) for cmd in value]
+            else:
+                self._matrices = typing.path_checker_multiple(value)
+        else:
+            self._matrices = []
 
     @property
     def transforms(self):

tests/rmtxop_test.py

@@ -105,7 +105,42 @@ def test_input_matrix_limit():
 def test_stdin_input():
     """Test assignments."""
     rmtxop = Rmtxop()
-
     rmtxop.matrices = ['dc.mtx', 'sky.mtx']
     rmtxop.transforms = [['47.4', '119.9', '11.6']]
     assert rmtxop.to_radiance(stdin_input=True) == 'rmtxop -c 47.4 119.9 11.6 -'
+
+
+def test_from_command():
+    """Test reading matrices input from another command."""
+    multiplication = Rmtxop()
+    multiplication.matrices = ['view.vmx', 'clear.xml', 'daylight.dmx', 'sky.smx']
+
+    rmtxop = Rmtxop()
+    rmtxop.transforms = [['47.4', '119.9', '11.6']]
+    rmtxop.matrices = multiplication
+    if os.name == 'posix':
+        assert rmtxop.to_radiance() == 'rmtxop -c 47.4 119.9 11.6 \'!rmtxop view.vmx ' \
+            'clear.xml daylight.dmx sky.smx\''
+    else:
+        assert rmtxop.to_radiance() == 'rmtxop -c 47.4 119.9 11.6 "!rmtxop view.vmx ' \
+            'clear.xml daylight.dmx sky.smx"'
+
+def test_from_command_multiple():
+    """Test reading multiple matrices input from another command."""
+    total = Rmtxop()
+    total.matrices = ['total.mtx', 'sky.smx']
+    direct = Rmtxop()
+    direct.matrices = ['direct.mtx', 'direct.smx']
+
+    rmtxop = Rmtxop()
+    rmtxop.operators = ['+', '+']
+    rmtxop.scalars = [None, -1, None]
+    rmtxop.matrices = [total, direct, 'sun.ill']
+    if os.name == 'posix':
+        assert rmtxop.to_radiance() == 'rmtxop \'!rmtxop total.mtx sky.smx\' ' \
+            '+ -s -1.0 \'!rmtxop direct.mtx direct.smx\' ' \
+            '+ sun.ill'
+    else:
+        assert rmtxop.to_radiance() == 'rmtxop "!rmtxop total.mtx sky.smx" ' \
+            '+ -s -1.0 "!rmtxop direct.mtx direct.smx" ' \
+            '+ sun.ill'