{"action":"created","comment":{"url":"https://api.github.com/repos/odlgroup/odl/pulls/comments/45384319","id":45384319,"diff_hunk":"@@ -0,0 +1,190 @@\n+﻿# Copyright 2014, 2015 Jonas Adler\n+#\n+# This file is part of ODL.\n+#\n+# ODL is free software: you can redistribute it and/or modify\n+# it under the terms of the GNU General Public License as published by\n+# the Free Software Foundation, either version 3 of the License, or\n+# (at your option) any later version.\n+#\n+# ODL is distributed in the hope that it will be useful,\n+# but WITHOUT ANY WARRANTY; without even the implied warranty of\n+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n+# GNU General Public License for more details.\n+#\n+# You should have received a copy of the GNU General Public License\n+# along with ODL.  If not, see <http://www.gnu.org/licenses/>.\n+\n+\"\"\"Default operators defined on any (reasonable) space.\"\"\"\n+\n+# Imports for common Python 2/3 codebase\n+from __future__ import print_function, division, absolute_import\n+from future import standard_library\n+standard_library.install_aliases()\n+from builtins import super\n+\n+import numpy as np\n+import scipy as sp\n+\n+# ODL imports\n+from odl.operator.operator import Operator\n+from odl.set.pspace import ProductSpace\n+\n+\n+__all__ = ('ProductSpaceOperator', 'ComponentProjection')\n+\n+\n+class ProductSpaceOperator(Operator):\n+    \"\"\"A separable operator on product spaces.\"\"\"\n+\n+    def __init__(self, operators, dom=None, ran=None):\n+        \"\"\" TODO\n+        \"\"\"\n+                   \n+        # Validate input data\n+        if dom is not None and not isinstance(dom, ProductSpace):\n+            raise TypeError('space {!r} not a ProductSpace instance.'\n+                            ''.format(dom))\n+        if ran is not None and not isinstance(ran, ProductSpace):\n+            raise TypeError('space {!r} not a ProductSpace instance.'\n+                            ''.format(dom))\n+\n+        # Convert ops to sparse representation\n+        self.ops = sp.sparse.coo_matrix(operators)","path":"odl/operator/pspace_ops.py","position":53,"original_position":53,"commit_id":"5784cd2f7d5dd72e5c5550d6392a89fd9d94ec9a","original_commit_id":"a5cbfd67a38a22811351ff6439c04fc432de64e7","user":{"login":"adler-j","id":2202312,"avatar_url":"https://avatars.githubusercontent.com/u/2202312?v=3","gravatar_id":"","url":"https://api.github.com/users/adler-j","html_url":"https://github.com/adler-j","followers_url":"https://api.github.com/users/adler-j/followers","following_url":"https://api.github.com/users/adler-j/following{/other_user}","gists_url":"https://api.github.com/users/adler-j/gists{/gist_id}","starred_url":"https://api.github.com/users/adler-j/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/adler-j/subscriptions","organizations_url":"https://api.github.com/users/adler-j/orgs","repos_url":"https://api.github.com/users/adler-j/repos","events_url":"https://api.github.com/users/adler-j/events{/privacy}","received_events_url":"https://api.github.com/users/adler-j/received_events","type":"User","site_admin":false},"body":"Not really, dot would not be able to handle zero rows, nor would it be optimized like this for the case where there is only one operator per element in the range (in which case this makes no copies).","created_at":"2015-11-19T19:02:02Z","updated_at":"2015-11-19T19:02:02Z","html_url":"https://github.com/odlgroup/odl/pull/61#discussion_r45384319","pull_request_url":"https://api.github.com/repos/odlgroup/odl/pulls/61","_links":{"self":{"href":"https://api.github.com/repos/odlgroup/odl/pulls/comments/45384319"},"html":{"href":"https://github.com/odlgroup/odl/pull/61#discussion_r45384319"},"pull_request":{"href":"https://api.github.com/repos/odlgroup/odl/pulls/61"}}},"pull_request":{"url":"https://api.github.com/repos/odlgroup/odl/pulls/61","id":51264826,"html_url":"https://github.com/odlgroup/odl/pull/61","diff_url":"https://github.com/odlgroup/odl/pull/61.diff","patch_url":"https://github.com/odlgroup/odl/pull/61.patch","issue_url":"https://api.github.com/repos/odlgroup/odl/issues/61","number":61,"state":"open","locked":false,"title":"Issue 11  pspace ops","user":{"login":"adler-j","id":2202312,"avatar_url":"https://avatars.githubusercontent.com/u/2202312?v=3","gravatar_id":"","url":"https://api.github.com/users/adler-j","html_url":"https://github.com/adler-j","followers_url":"https://api.github.com/users/adler-j/followers","following_url":"https://api.github.com/users/adler-j/following{/other_user}","gists_url":"https://api.github.com/users/adler-j/gists{/gist_id}","starred_url":"https://api.github.com/users/adler-j/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/adler-j/subscriptions","organizations_url":"https://api.github.com/users/adler-j/orgs","repos_url":"https://api.github.com/users/adler-j/repos","events_url":"https://api.github.com/users/adler-j/events{/privacy}","received_events_url":"https://api.github.com/users/adler-j/received_events","type":"User","site_admin":false},"body":"Making a preliminary pull request here, could use some review. Doc needs to be written and style fixed.","created_at":"2015-11-19T18:57:36Z","updated_at":"2015-11-19T19:02:02Z","closed_at":null,"merged_at":null,"merge_commit_sha":"57077eaafb811291b726fbe910fe42a8e3388383","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/odlgroup/odl/pulls/61/commits","review_comments_url":"https://api.github.com/repos/odlgroup/odl/pulls/61/comments","review_comment_url":"https://api.github.com/repos/odlgroup/odl/pulls/comments{/number}","comments_url":"https://api.github.com/repos/odlgroup/odl/issues/61/comments","statuses_url":"https://api.github.com/repos/odlgroup/odl/statuses/5784cd2f7d5dd72e5c5550d6392a89fd9d94ec9a","head":{"label":"odlgroup:issue-11__pspace_ops","ref":"issue-11__pspace_ops","sha":"5784cd2f7d5dd72e5c5550d6392a89fd9d94ec9a","user":{"login":"odlgroup","id":15667171,"avatar_url":"https://avatars.githubusercontent.com/u/15667171?v=3","gravatar_id":"","url":"https://api.github.com/users/odlgroup","html_url":"https://github.com/odlgroup","followers_url":"https://api.github.com/users/odlgroup/followers","following_url":"https://api.github.com/users/odlgroup/following{/other_user}","gists_url":"https://api.github.com/users/odlgroup/gists{/gist_id}","starred_url":"https://api.github.com/users/odlgroup/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/odlgroup/subscriptions","organizations_url":"https://api.github.com/users/odlgroup/orgs","repos_url":"https://api.github.com/users/odlgroup/repos","events_url":"https://api.github.com/users/odlgroup/events{/privacy}","received_events_url":"https://api.github.com/users/odlgroup/received_events","type":"Organization","site_admin":false},"repo":{"id":45596393,"name":"odl","full_name":"odlgroup/odl","owner":{"login":"odlgroup","id":15667171,"avatar_url":"https://avatars.githubusercontent.com/u/15667171?v=3","gravatar_id":"","url":"https://api.github.com/users/odlgroup","html_url":"https://github.com/odlgroup","followers_url":"https://api.github.com/users/odlgroup/followers","following_url":"https://api.github.com/users/odlgroup/following{/other_user}","gists_url":"https://api.github.com/users/odlgroup/gists{/gist_id}","starred_url":"https://api.github.com/users/odlgroup/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/odlgroup/subscriptions","organizations_url":"https://api.github.com/users/odlgroup/orgs","repos_url":"https://api.github.com/users/odlgroup/repos","events_url":"https://api.github.com/users/odlgroup/events{/privacy}","received_events_url":"https://api.github.com/users/odlgroup/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/odlgroup/odl","description":"Operator Discretization Library","fork":false,"url":"https://api.github.com/repos/odlgroup/odl","forks_url":"https://api.github.com/repos/odlgroup/odl/forks","keys_url":"https://api.github.com/repos/odlgroup/odl/keys{/key_id}","collaborators_url":"https://api.github.com/repos/odlgroup/odl/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/odlgroup/odl/teams","hooks_url":"https://api.github.com/repos/odlgroup/odl/hooks","issue_events_url":"https://api.github.com/repos/odlgroup/odl/issues/events{/number}","events_url":"https://api.github.com/repos/odlgroup/odl/events","assignees_url":"https://api.github.com/repos/odlgroup/odl/assignees{/user}","branches_url":"https://api.github.com/repos/odlgroup/odl/branches{/branch}","tags_url":"https://api.github.com/repos/odlgroup/odl/tags","blobs_url":"https://api.github.com/repos/odlgroup/odl/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/odlgroup/odl/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/odlgroup/odl/git/refs{/sha}","trees_url":"https://api.github.com/repos/odlgroup/odl/git/trees{/sha}","statuses_url":"https://api.github.com/repos/odlgroup/odl/statuses/{sha}","languages_url":"https://api.github.com/repos/odlgroup/odl/languages","stargazers_url":"https://api.github.com/repos/odlgroup/odl/stargazers","contributors_url":"https://api.github.com/repos/odlgroup/odl/contributors","subscribers_url":"https://api.github.com/repos/odlgroup/odl/subscribers","subscription_url":"https://api.github.com/repos/odlgroup/odl/subscription","commits_url":"https://api.github.com/repos/odlgroup/odl/commits{/sha}","git_commits_url":"https://api.github.com/repos/odlgroup/odl/git/commits{/sha}","comments_url":"https://api.github.com/repos/odlgroup/odl/comments{/number}","issue_comment_url":"https://api.github.com/repos/odlgroup/odl/issues/comments{/number}","contents_url":"https://api.github.com/repos/odlgroup/odl/contents/{+path}","compare_url":"https://api.github.com/repos/odlgroup/odl/compare/{base}...{head}","merges_url":"https://api.github.com/repos/odlgroup/odl/merges","archive_url":"https://api.github.com/repos/odlgroup/odl/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/odlgroup/odl/downloads","issues_url":"https://api.github.com/repos/odlgroup/odl/issues{/number}","pulls_url":"https://api.github.com/repos/odlgroup/odl/pulls{/number}","milestones_url":"https://api.github.com/repos/odlgroup/odl/milestones{/number}","notifications_url":"https://api.github.com/repos/odlgroup/odl/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/odlgroup/odl/labels{/name}","releases_url":"https://api.github.com/repos/odlgroup/odl/releases{/id}","created_at":"2015-11-05T07:57:55Z","updated_at":"2015-11-10T16:59:15Z","pushed_at":"2015-11-19T19:01:06Z","git_url":"git://github.com/odlgroup/odl.git","ssh_url":"git@github.com:odlgroup/odl.git","clone_url":"https://github.com/odlgroup/odl.git","svn_url":"https://github.com/odlgroup/odl","homepage":null,"size":12046,"stargazers_count":0,"watchers_count":0,"language":"Python","has_issues":true,"has_downloads":true,"has_wiki":true,"has_pages":false,"forks_count":1,"mirror_url":null,"open_issues_count":31,"forks":1,"open_issues":31,"watchers":0,"default_branch":"master"}},"base":{"label":"odlgroup:master","ref":"master","sha":"2aae3cb534c5bd8cbb83b1a5a088b594e3d2ae88","user":{"login":"odlgroup","id":15667171,"avatar_url":"https://avatars.githubusercontent.com/u/15667171?v=3","gravatar_id":"","url":"https://api.github.com/users/odlgroup","html_url":"https://github.com/odlgroup","followers_url":"https://api.github.com/users/odlgroup/followers","following_url":"https://api.github.com/users/odlgroup/following{/other_user}","gists_url":"https://api.github.com/users/odlgroup/gists{/gist_id}","starred_url":"https://api.github.com/users/odlgroup/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/odlgroup/subscriptions","organizations_url":"https://api.github.com/users/odlgroup/orgs","repos_url":"https://api.github.com/users/odlgroup/repos","events_url":"https://api.github.com/users/odlgroup/events{/privacy}","received_events_url":"https://api.github.com/users/odlgroup/received_events","type":"Organization","site_admin":false},"repo":{"id":45596393,"name":"odl","full_name":"odlgroup/odl","owner":{"login":"odlgroup","id":15667171,"avatar_url":"https://avatars.githubusercontent.com/u/15667171?v=3","gravatar_id":"","url":"https://api.github.com/users/odlgroup","html_url":"https://github.com/odlgroup","followers_url":"https://api.github.com/users/odlgroup/followers","following_url":"https://api.github.com/users/odlgroup/following{/other_user}","gists_url":"https://api.github.com/users/odlgroup/gists{/gist_id}","starred_url":"https://api.github.com/users/odlgroup/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/odlgroup/subscriptions","organizations_url":"https://api.github.com/users/odlgroup/orgs","repos_url":"https://api.github.com/users/odlgroup/repos","events_url":"https://api.github.com/users/odlgroup/events{/privacy}","received_events_url":"https://api.github.com/users/odlgroup/received_events","type":"Organization","site_admin":false},"private":false,"html_url":"https://github.com/odlgroup/odl","description":"Operator Discretization Library","fork":false,"url":"https://api.github.com/repos/odlgroup/odl","forks_url":"https://api.github.com/repos/odlgroup/odl/forks","keys_url":"https://api.github.com/repos/odlgroup/odl/keys{/key_id}","collaborators_url":"https://api.github.com/repos/odlgroup/odl/collaborators{/collaborator}","teams_url":"https://api.github.com/repos/odlgroup/odl/teams","hooks_url":"https://api.github.com/repos/odlgroup/odl/hooks","issue_events_url":"https://api.github.com/repos/odlgroup/odl/issues/events{/number}","events_url":"https://api.github.com/repos/odlgroup/odl/events","assignees_url":"https://api.github.com/repos/odlgroup/odl/assignees{/user}","branches_url":"https://api.github.com/repos/odlgroup/odl/branches{/branch}","tags_url":"https://api.github.com/repos/odlgroup/odl/tags","blobs_url":"https://api.github.com/repos/odlgroup/odl/git/blobs{/sha}","git_tags_url":"https://api.github.com/repos/odlgroup/odl/git/tags{/sha}","git_refs_url":"https://api.github.com/repos/odlgroup/odl/git/refs{/sha}","trees_url":"https://api.github.com/repos/odlgroup/odl/git/trees{/sha}","statuses_url":"https://api.github.com/repos/odlgroup/odl/statuses/{sha}","languages_url":"https://api.github.com/repos/odlgroup/odl/languages","stargazers_url":"https://api.github.com/repos/odlgroup/odl/stargazers","contributors_url":"https://api.github.com/repos/odlgroup/odl/contributors","subscribers_url":"https://api.github.com/repos/odlgroup/odl/subscribers","subscription_url":"https://api.github.com/repos/odlgroup/odl/subscription","commits_url":"https://api.github.com/repos/odlgroup/odl/commits{/sha}","git_commits_url":"https://api.github.com/repos/odlgroup/odl/git/commits{/sha}","comments_url":"https://api.github.com/repos/odlgroup/odl/comments{/number}","issue_comment_url":"https://api.github.com/repos/odlgroup/odl/issues/comments{/number}","contents_url":"https://api.github.com/repos/odlgroup/odl/contents/{+path}","compare_url":"https://api.github.com/repos/odlgroup/odl/compare/{base}...{head}","merges_url":"https://api.github.com/repos/odlgroup/odl/merges","archive_url":"https://api.github.com/repos/odlgroup/odl/{archive_format}{/ref}","downloads_url":"https://api.github.com/repos/odlgroup/odl/downloads","issues_url":"https://api.github.com/repos/odlgroup/odl/issues{/number}","pulls_url":"https://api.github.com/repos/odlgroup/odl/pulls{/number}","milestones_url":"https://api.github.com/repos/odlgroup/odl/milestones{/number}","notifications_url":"https://api.github.com/repos/odlgroup/odl/notifications{?since,all,participating}","labels_url":"https://api.github.com/repos/odlgroup/odl/labels{/name}","releases_url":"https://api.github.com/repos/odlgroup/odl/releases{/id}","created_at":"2015-11-05T07:57:55Z","updated_at":"2015-11-10T16:59:15Z","pushed_at":"2015-11-19T19:01:06Z","git_url":"git://github.com/odlgroup/odl.git","ssh_url":"git@github.com:odlgroup/odl.git","clone_url":"https://github.com/odlgroup/odl.git","svn_url":"https://github.com/odlgroup/odl","homepage":null,"size":12046,"stargazers_count":0,"watchers_count":0,"language":"Python","has_issues":true,"has_downloads":true,"has_wiki":true,"has_pages":false,"forks_count":1,"mirror_url":null,"open_issues_count":31,"forks":1,"open_issues":31,"watchers":0,"default_branch":"master"}},"_links":{"self":{"href":"https://api.github.com/repos/odlgroup/odl/pulls/61"},"html":{"href":"https://github.com/odlgroup/odl/pull/61"},"issue":{"href":"https://api.github.com/repos/odlgroup/odl/issues/61"},"comments":{"href":"https://api.github.com/repos/odlgroup/odl/issues/61/comments"},"review_comments":{"href":"https://api.github.com/repos/odlgroup/odl/pulls/61/comments"},"review_comment":{"href":"https://api.github.com/repos/odlgroup/odl/pulls/comments{/number}"},"commits":{"href":"https://api.github.com/repos/odlgroup/odl/pulls/61/commits"},"statuses":{"href":"https://api.github.com/repos/odlgroup/odl/statuses/5784cd2f7d5dd72e5c5550d6392a89fd9d94ec9a"}}}}