Merge branch 'new' into 'master'

merge branch new to master

See merge request !9

.gitlab-ci.yml

@@ -33,23 +33,22 @@ stages:
       - ${CONDA_ROOT}/pkgs/urls.txt
 
 
-.build_linux_template: &linux_build_job
+.build_macosx_template: &macosx_build_job
   <<: *build_job
   tags:
-    - docker
-  image: continuumio/conda-concourse-ci
+    - macosx
   artifacts:
     expire_in: 1 week
     paths:
       - _ci/
-      - ${CONDA_ROOT}/conda-bld/linux-64/*.tar.bz2
+      - ${CONDA_ROOT}/conda-bld/osx-64/*.tar.bz2
   cache:
     <<: *build_caches
-    key: "linux-cache"
+    key: "macosx-cache"
 
 
-build_linux_36:
-  <<: *linux_build_job
+build_macosx_36:
+  <<: *macosx_build_job
   variables:
     GITLAB_CHECKOUT_STRATEGY: "https://gitlab-ci-token:${CI_BUILD_TOKEN}@gitlab.idiap.ch/"
     PYTHON_VERSION: "3.6"
@@ -59,7 +58,7 @@ build_linux_36:
     paths:
       - _ci/
       - sphinx
-      - ${CONDA_ROOT}/conda-bld/linux-64/*.tar.bz2
+      - ${CONDA_ROOT}/conda-bld/osx-64/*.tar.bz2
 
 
 # Deploy targets
@@ -70,7 +69,7 @@ build_linux_36:
   script:
     - ./_ci/deploy.sh
   dependencies:
-    - build_linux_36
+    - build_macosx_36
   tags:
     - deployer
 
@@ -80,6 +79,7 @@ deploy_beta:
   environment: beta
   only:
     - master
+    - new
 
 
 deploy_stable:
@@ -88,4 +88,4 @@ deploy_stable:
   only:
     - /^v\d+\.\d+\.\d+([abc]\d*)?$/  # PEP-440 compliant version (tags)
   except:
-    - branches
+    - branches
\ No newline at end of file

before_build.sh

@@ -9,23 +9,23 @@ GITLAB_CHECKOUT_STRATEGY="${GITLAB_CHECKOUT_STRATEGY:-git@gitlab.idiap.ch:}"
 for pkg in `cat requirements.txt | sed -e '/^\s*#.*/d;/^\s*$/d'`; do
     version=master
     if [[ $pkg  == "beat.cmdline" ]]; then
-      version=1.4.x
+      version=docedit
     fi
     if [[ $pkg  == "beat.core" ]]; then
-      version=1.6.x
+      version=docedit
     fi
     if [[ $pkg  == "beat.backend.python" ]]; then
-      version=1.5.x
+      version=docedit
     fi
     if [[ $pkg  == "beat.web" ]]; then
-      version=1.4.x
+      version=docs
     fi
     if [[ $pkg  == "beat.editor" ]]; then
-      version=docs
+      version=docedit
     fi
     git clone --depth 1 -b $version ${GITLAB_CHECKOUT_STRATEGY}beat/${pkg}.git doc/$pkg || \
     { git -C doc/$pkg reset --hard HEAD && \
-    git -C doc/$pkg checkout master && \
+    git -C doc/$pkg checkout $version && \
     git -C doc/$pkg pull; }
     if [[ -n "${CI_COMMIT_TAG}" ]]; then
         git -C doc/$pkg fetch --tags

conda/meta.yaml

@@ -17,7 +17,6 @@ requirements:
     - beat.cmdline
     - beat.backend.python
     - beat.editor
-    - bob.extension
 
 test:
   commands:
@@ -28,6 +27,8 @@ test:
     - sphinx
     - sphinx_rtd_theme
     - matplotlib
+    - bob.extension
+    - sphinxcontrib-programoutput
 
 about:
   home: https://www.idiap.ch/software/beat/

doc/beat/experiments.rst

+.. vim: set fileencoding=utf-8 :
+
+.. Copyright (c) 2016 Idiap Research Institute, http://www.idiap.ch/          ..
+.. Contact: beat.support@idiap.ch                                             ..
+..                                                                            ..
+.. This file is part of the beat.docs module of the BEAT platform.            ..
+..                                                                            ..
+.. Commercial License Usage                                                   ..
+.. Licensees holding valid commercial BEAT licenses may use this file in      ..
+.. accordance with the terms contained in a written agreement between you     ..
+.. and Idiap. For further information contact tto@idiap.ch                    ..
+..                                                                            ..
+.. Alternatively, this file may be used under the terms of the GNU Affero     ..
+.. Public License version 3 as published by the Free Software and appearing   ..
+.. in the file LICENSE.AGPL included in the packaging of this file.           ..
+.. The BEAT platform is distributed in the hope that it will be useful, but   ..
+.. WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ..
+.. or FITNESS FOR A PARTICULAR PURPOSE.                                       ..
+..                                                                            ..
+.. You should have received a copy of the GNU Affero Public License along     ..
+.. with the BEAT platform. If not, see http://www.gnu.org/licenses/.          ..
+
+
+.. _beat-system-experiments:
+
+=============
+ Experiments
+=============
+
+An experiment is the reunion of algorithms, datasets, a toolchain and
+parameters that allow the system to schedule and run the prescribed recipe
+to produce displayable results. Defining a BEAT experiment can be seen as
+configuring the processing blocks of a toolchain, such as selecting which
+database, algorithms and algorithm parameters to use.
+
+The graphical interface of BEAT provides user-friendly editors to configure the main components of the system (for example: experiments, data formats, etc.), which simplifies their `JSON`_ declaration definition. One needs only to declare an experiment using the described specifications when not using this graphical interface.
+
+.. note:: **Naming Convention**
+
+   Experiments are named using five values joined by a ``/`` (slash)
+   operator:
+
+     * **username**: indicates the author of the experiment
+     * **toolchain username**: indicates the author of the toolchain used for
+       that experiment
+     * **toolchain name**: indicates the name of the toolchain used for that
+       experiment
+     * **toolchain version**: indicates the version (integer starting from
+       ``1``) of the toolchain used for the experiment
+     * **name**: an identifier for the object
+
+   Each tuple of these five components defines a *unique* experiment name.
+
+
+.. _beat-system-experiments-declaration:
+
+Declaration of an experiment
+----------------------------
+An experiment is declared in a JSON file, and must contain at least the following
+fields:
+
+.. code-block:: javascript
+
+    {
+        "datasets": [
+        ],
+        "blocks": [
+        ],
+        "analyzers": [
+        ],
+        "globals": [
+        ]
+    }
+
+
+.. _beat-system-experiments-datasets:
+
+Declaration of the dataset(s)
+-----------------------------
+
+The dataset inputs are defined by the toolchain. However, the toolchain does
+not describe which data to plug in each dataset input.
+
+This is the role of the field `datasets` from an experiment.
+For each dataset, an experiment must specify three attributes as follows:
+
+.. code-block:: javascript
+
+    {
+        "datasets": [
+            "templates": {
+                "set": "templates",
+                "protocol": "idiap",
+                "database": "atnt/1"
+            },
+            ...
+        ],
+        ...
+    }
+
+
+The key of an experiment dataset must correspond to the desired dataset name
+from the toolchain. Then, three fields must be given:
+
+* `database`: the database name and version
+* `protocol`: the protocol name
+* `set`: the dataset name of this database to associate to this toolchain
+  dataset
+
+
+.. _beat-system-experiments-blocks:
+
+Declaration of the block(s)
+---------------------------
+
+The blocks are defined by the toolchain. However, the toolchain does not
+describe which algorithm to run in each processing block, and how each of these
+algorithms are parametrized.
+
+This is the role of the field `blocks` from an experiment.
+For each block, an experiment must specify four attributes as follows:
+
+.. code-block:: javascript
+
+    {
+        "blocks": {
+            "linear_machine_training": {
+                "inputs": {
+                    "image": "image"
+                },
+                "parameters": {},
+                "algorithm": "tutorial/pca/1",
+                "outputs": {
+                    "subspace": "subspace"
+                }
+            },
+            ...
+        },
+        ...
+    }
+
+The key of an experiment block must correspond to the desired block from the
+toolchain. Then, four fields must be given:
+
+* `algorithm`: the algorithm to use (author_name/algorithm_name/version)
+* `inputs`: the list of inputs. The key is the algorithm input, while the
+  value is the corresponding toolchain input.
+* `outputs`: the list of outputs. The key is the algorithm output, while the
+  value is the corresponding toolchain output.
+* `parameters`: the algorithm parameters to use for this processing block
+
+
+.. note:: **Algorithms, Datasets and Blocks**
+
+   While configuring the experiment, your objective is to fill-in all
+   containers defined by the toolchain with valid datasets and algorithms or
+   analyzers. **BEAT will check connected datasets, algorithms and
+   analyzers produce or consume data in the right format**. It only presents
+   options which are *compatible* with adjacent blocks.
+
+   For example, if you chose dataset ``A`` for block ``train`` of your
+   experiment that outputs objects in the format ``user/format/1``, then the
+   algorithm running on the block following ``train``, **must** consume
+   ``user/format/1`` on its input. Therefore, the choices for algorithms that
+   can run after ``train`` become limited at the moment you chose the dataset
+   ``A``. The configuration system will *dynamically* update to take those
+   constraints into consideration every time you make a selection, increasing
+   the global constraints for the experiment.
+
+.. _beat-system-experiments-analyzers:
+
+Declaration of the analyzer(s)
+------------------------------
+
+Analyzers are similar to algorithms, except that they run on toolchain
+endpoints. There configuration is very similar to the one of regular blocks,
+except that they have no `outputs`:
+
+.. code-block:: javascript
+
+    {
+        "analyzers": {
+            "analysis": {
+                "inputs": {
+                    "scores": "scores"
+                },
+                "algorithm": "tutorial/postperf/1"
+            }
+        },
+    }
+
+
+Global parameters
+-----------------
+
+Each block and analyzer may rely on its own local parameters. However, several
+blocks may rely on the exact same parameters. In this case, it is more
+convenient to define those globally.
+
+For an experiment, this is achieved using the `globals` field in its JSON
+declaration. For instance:
+
+.. code-block:: javascript
+
+    {
+        "globals": {
+            "queue": "Default",
+            "environment": {
+                "version": "1.1.0",
+                "name": "Scientific Python 2.7"
+            },
+            "tutorial/pca/1": {
+                "number-of-components": "5"
+            }
+        },
+        ...
+    }
+
+.. include:: links.rst
\ No newline at end of file

doc/beat/img/execute.msc

+# use mscgen to create a diagram from this representation:
+# $ mscgen -T png -o img/execute.png -i img/execute.msc
+msc {
+  hscale = "2.0";
+
+  io [label="BEAT Infrastructure (language agnostic)"], up [label="Execute (user code)"];
+
+  up->io [ label = "nxt channel" ];
+  io->up [ label = "2 name1 <bin1> name2 <bin2>" ];
+  up->io [ label = "hmd channel name" ];
+  io->up [ label = "tru" ];
+  up->io [ label = "oic name" ];
+  io->up [ label = "tru" ];
+  up->io [ label = "wrt out sz <bin>" ];
+  io->up [ label = "ack" ];
+  ...;
+  up->io [ label = "hmd channel name" ];
+  io->up [ label = "fal" ];
+  up->io [ label = "don" ];
+  ...;
+  io->up [ label = "ack" ];
+}

doc/beat/img/execute.svg

+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1"
+ width="1200px" height="392px"
+ viewBox="0 0 1200 392"
+ xmlns="http://www.w3.org/2000/svg" shape-rendering="crispEdges"
+ stroke-width="1" text-rendering="geometricPrecision">
+<polygon fill="white" points="191,7 407,7 407,16 191,16"/>
+<text x="300" y="16" textLength="214" font-family="Helvetica" font-size="12" fill="black" text-anchor="middle">
+
+BEAT Infrastructure (language agnostic)
+</text>
+<polygon fill="white" points="845,7 953,7 953,16 845,16"/>
+<text x="900" y="16" textLength="107" font-family="Helvetica" font-size="12" fill="black" text-anchor="middle">
+
+Execute (user code)
+</text>
+<line x1="300" y1="22" x2="300" y2="50" stroke="black"/>
+<line x1="900" y1="22" x2="900" y2="50" stroke="black"/>
+<line x1="900" y1="33" x2="300" y2="33" stroke="black"/>
+<line x1="300" y1="33" x2="310" y2="39" stroke="black"/>
+<polygon fill="white" points="568,23 631,23 631,32 568,32"/>
+<text x="569" y="32" textLength="61" font-family="Helvetica" font-size="12" fill="black">
+nxt channel
+</text>
+<line x1="300" y1="50" x2="300" y2="78" stroke="black"/>
+<line x1="900" y1="50" x2="900" y2="78" stroke="black"/>
+<line x1="300" y1="61" x2="900" y2="61" stroke="black"/>
+<line x1="900" y1="61" x2="890" y2="67" stroke="black"/>
+<polygon fill="white" points="515,51 684,51 684,60 515,60"/>
+<text x="516" y="60" textLength="167" font-family="Helvetica" font-size="12" fill="black">
+2 name1 &lt;bin1&gt; name2 &lt;bin2&gt;
+</text>
+<line x1="300" y1="78" x2="300" y2="106" stroke="black"/>
+<line x1="900" y1="78" x2="900" y2="106" stroke="black"/>
+<line x1="900" y1="89" x2="300" y2="89" stroke="black"/>
+<line x1="300" y1="89" x2="310" y2="95" stroke="black"/>
+<polygon fill="white" points="547,79 651,79 651,88 547,88"/>
+<text x="548" y="88" textLength="102" font-family="Helvetica" font-size="12" fill="black">
+hmd channel name
+</text>
+<line x1="300" y1="106" x2="300" y2="134" stroke="black"/>
+<line x1="900" y1="106" x2="900" y2="134" stroke="black"/>
+<line x1="300" y1="117" x2="900" y2="117" stroke="black"/>
+<line x1="900" y1="117" x2="890" y2="123" stroke="black"/>
+<polygon fill="white" points="591,107 607,107 607,116 591,116"/>
+<text x="592" y="116" textLength="14" font-family="Helvetica" font-size="12" fill="black">
+tru
+</text>
+<line x1="300" y1="134" x2="300" y2="162" stroke="black"/>
+<line x1="900" y1="134" x2="900" y2="162" stroke="black"/>
+<line x1="900" y1="145" x2="300" y2="145" stroke="black"/>
+<line x1="300" y1="145" x2="310" y2="151" stroke="black"/>
+<polygon fill="white" points="574,135 625,135 625,144 574,144"/>
+<text x="575" y="144" textLength="49" font-family="Helvetica" font-size="12" fill="black">
+oic name
+</text>
+<line x1="300" y1="162" x2="300" y2="190" stroke="black"/>
+<line x1="900" y1="162" x2="900" y2="190" stroke="black"/>
+<line x1="300" y1="173" x2="900" y2="173" stroke="black"/>
+<line x1="900" y1="173" x2="890" y2="179" stroke="black"/>
+<polygon fill="white" points="591,163 607,163 607,172 591,172"/>
+<text x="592" y="172" textLength="14" font-family="Helvetica" font-size="12" fill="black">
+tru
+</text>
+<line x1="300" y1="190" x2="300" y2="218" stroke="black"/>
+<line x1="900" y1="190" x2="900" y2="218" stroke="black"/>
+<line x1="900" y1="201" x2="300" y2="201" stroke="black"/>
+<line x1="300" y1="201" x2="310" y2="207" stroke="black"/>
+<polygon fill="white" points="556,191 643,191 643,200 556,200"/>
+<text x="557" y="200" textLength="85" font-family="Helvetica" font-size="12" fill="black">
+wrt out sz &lt;bin&gt;
+</text>
+<line x1="300" y1="218" x2="300" y2="246" stroke="black"/>
+<line x1="900" y1="218" x2="900" y2="246" stroke="black"/>
+<line x1="300" y1="229" x2="900" y2="229" stroke="black"/>
+<line x1="900" y1="229" x2="890" y2="235" stroke="black"/>
+<polygon fill="white" points="589,219 610,219 610,228 589,228"/>
+<text x="590" y="228" textLength="19" font-family="Helvetica" font-size="12" fill="black">
+ack
+</text>
+<line x1="300" y1="246" x2="300" y2="263" stroke="black" stroke-dasharray="2,2"/>
+<line x1="900" y1="246" x2="900" y2="263" stroke="black" stroke-dasharray="2,2"/>
+<line x1="300" y1="263" x2="300" y2="291" stroke="black"/>
+<line x1="900" y1="263" x2="900" y2="291" stroke="black"/>
+<line x1="900" y1="274" x2="300" y2="274" stroke="black"/>
+<line x1="300" y1="274" x2="310" y2="280" stroke="black"/>
+<polygon fill="white" points="547,264 651,264 651,273 547,273"/>
+<text x="548" y="273" textLength="102" font-family="Helvetica" font-size="12" fill="black">
+hmd channel name
+</text>
+<line x1="300" y1="291" x2="300" y2="319" stroke="black"/>
+<line x1="900" y1="291" x2="900" y2="319" stroke="black"/>
+<line x1="300" y1="302" x2="900" y2="302" stroke="black"/>
+<line x1="900" y1="302" x2="890" y2="308" stroke="black"/>
+<polygon fill="white" points="592,292 607,292 607,301 592,301"/>
+<text x="593" y="301" textLength="13" font-family="Helvetica" font-size="12" fill="black">
+fal
+</text>
+<line x1="300" y1="319" x2="300" y2="347" stroke="black"/>
+<line x1="900" y1="319" x2="900" y2="347" stroke="black"/>
+<line x1="900" y1="330" x2="300" y2="330" stroke="black"/>
+<line x1="300" y1="330" x2="310" y2="336" stroke="black"/>
+<polygon fill="white" points="588,320 610,320 610,329 588,329"/>
+<text x="589" y="329" textLength="20" font-family="Helvetica" font-size="12" fill="black">
+don
+</text>
+<line x1="300" y1="347" x2="300" y2="364" stroke="black" stroke-dasharray="2,2"/>
+<line x1="900" y1="347" x2="900" y2="364" stroke="black" stroke-dasharray="2,2"/>
+<line x1="300" y1="364" x2="300" y2="392" stroke="black"/>
+<line x1="900" y1="364" x2="900" y2="392" stroke="black"/>
+<line x1="300" y1="375" x2="900" y2="375" stroke="black"/>
+<line x1="900" y1="375" x2="890" y2="381" stroke="black"/>
+<polygon fill="white" points="589,365 610,365 610,374 589,374"/>
+<text x="590" y="374" textLength="19" font-family="Helvetica" font-size="12" fill="black">
+ack
+</text>
+<line x1="300" y1="386" x2="300" y2="392" stroke="black"/>
+<line x1="900" y1="386" x2="900" y2="392" stroke="black"/>
+</svg>

doc/beat/img/experiment-triangle.dot

+digraph "user/triangle/1" {
+	graph [compound=true rankdir=LR splines=polyline]
+	subgraph dataset_cluster {
+		graph [label=datasets rank=same]
+		set [label=<<table border="0" cellspacing="0" bgcolor="#7878ff"><tr><td><font color="#000000"><b><u>set</u></b><br/>simple/1<br/><i>protocol:set</i></font></td><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="output_out" bgcolor="#0000FF" border="1"><font color="#ffffff">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+		set2 [label=<<table border="0" cellspacing="0" bgcolor="#e2ffc7"><tr><td><font color="#000000"><b><u>set2</u></b><br/>simple/1<br/><i>protocol:set2</i></font></td><td><table border="0" cellspacing="5" bgcolor="#e2ffc7"><tr><td port="output_out" bgcolor="#6AA84F" border="1"><font color="#000000">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+	}
+	echo1 [label=<<table border="0" cellspacing="0" bgcolor="#7878ff"><tr><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="input_in" bgcolor="#0000FF" border="1"><font color="#ffffff">in</font></td></tr></table></td><td><font color="#000000"><b><u>echo1</u></b><br/>user/integers_echo/1<br/><i>@environment(1) x 1</i></font></td><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="output_out" bgcolor="#0000FF" border="1"><font color="#ffffff">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+		set:output_out -> echo1:input_in [label="beat/integer/1" color="#0000FF" fontcolor="#0000FF" fontname=Helvetica fontsize=12]
+	echo2 [label=<<table border="0" cellspacing="0" bgcolor="#e2ffc7"><tr><td><table border="0" cellspacing="5" bgcolor="#e2ffc7"><tr><td port="input_in" bgcolor="#6AA84F" border="1"><font color="#000000">in</font></td></tr></table></td><td><font color="#000000"><b><u>echo2</u></b><br/>user/integers_echo/1<br/><i>@environment(1) x 1</i></font></td><td><table border="0" cellspacing="5" bgcolor="#e2ffc7"><tr><td port="output_out" bgcolor="#6AA84F" border="1"><font color="#000000">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+		set2:output_out -> echo2:input_in [label="beat/integer/1" color="#6AA84F" fontcolor="#6AA84F" fontname=Helvetica fontsize=12]
+	echo3 [label=<<table border="0" cellspacing="0" bgcolor="#7878ff"><tr><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="input_in" bgcolor="#0000FF" border="1"><font color="#ffffff">in</font></td></tr><tr><td port="input_in2" bgcolor="#0000FF" border="1"><font color="#ffffff">in2</font></td></tr></table></td><td><font color="#000000"><b><u>echo3</u></b><br/>user/integers_echo_ignore/1<br/><i>@environment(1) x 1</i></font></td><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="output_out" bgcolor="#0000FF" border="1"><font color="#ffffff">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+		echo1:output_out -> echo3:input_in [label="beat/integer/1" color="#0000FF" fontcolor="#0000FF" fontname=Helvetica fontsize=12]
+		echo2:output_out -> echo3:input_in2 [label="beat/integer/1" color="#0000FF" fontcolor="#0000FF" fontname=Helvetica fontsize=12]
+	analysis [label=<<table border="0" cellspacing="0" bgcolor="#7878ff"><tr><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="input_in" bgcolor="#0000FF" border="1"><font color="#ffffff">in</font></td></tr></table></td><td><font color="#000000"><b><u>analysis</u></b><br/>user/integers_echo_analyzer/1<br/><i>@environment(1) x 1</i></font></td><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td bgcolor="#0000FF" border="1"><font color="#ffffff">out_data<br/>(int32)</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+		echo3:output_out -> analysis:input_in [label="beat/integer/1" color="#0000FF" fontcolor="#0000FF" fontname=Helvetica fontsize=12]
+	subgraph analyzer_cluster {
+		graph [label=analyzers rank=same]
+	}
+}

doc/beat/img/hierarchy.dot

+digraph hierarchy {
+	graph [fontname="helvetica", compound=true, splines=polyline]
+	node [fontname="helvetica", shape=record, style=filled, fillcolor=gray95]
+	edge [fontname="helvetica"]
+
+	subgraph "algorithm_cluster" {
+	1[label = "{Dataformat|...|+user\n+name\n+version}"]
+	2[label = "{Algorithm|...|+user\n+name\n+version\n+code\n+language}"]
+	6[label = "{Library|...|+user\n+name\n+version\n+code\n+language}"]
+	}
+	subgraph "database_cluster" {
+	graph [label=datasets]
+	3[label = "{Database|...|+name\n+version}"]
+	4[label = "{Protocol|...|+template}"]
+	5[label = "Set"]
+	}
+	subgraph "experiment_cluster" {
+	graph [label=experiments]
+	7[label = "{Toolchain|+execution_order()|+user\n+name\n+version}"]
+	8[label = "{Experiment|...|+user\n+label}"]
+	}
+
+	1->1 [label = "0..*", arrowhead=empty]
+	2->1 [label = "1..*", arrowhead=empty]
+	2->6 [label = "0..*", arrowhead=empty]
+	6->6 [label = "0..*", arrowhead=empty]
+	4->3 [label = "1..*", arrowhead=odiamond]
+	5->4 [label = "1..*", arrowhead=odiamond]
+	5->1 [label = "1..*", arrowhead=empty]
+	8->7 [label = "1..1", arrowhead=empty]
+	8->2 [label = "1..*", arrowhead=empty]
+	8->5 [label = "1..*", arrowhead=empty]
+}

doc/beat/img/toolchain-triangle.dot

+digraph "user/triangle/1" {
+	graph [compound=true rankdir=LR splines=polyline]
+	subgraph dataset_cluster {
+		graph [label=datasets rank=same]
+		set [label=<<table border="0" cellspacing="0" bgcolor="#7878ff"><tr><td><font color="#000000"><b><u>set</u></b></font></td><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="output_out" bgcolor="#0000FF" border="1"><font color="#ffffff">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+		set2 [label=<<table border="0" cellspacing="0" bgcolor="#e2ffc7"><tr><td><font color="#000000"><b><u>set2</u></b></font></td><td><table border="0" cellspacing="5" bgcolor="#e2ffc7"><tr><td port="output_out" bgcolor="#6AA84F" border="1"><font color="#000000">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+	}
+	echo1 [label=<<table border="0" cellspacing="0" bgcolor="#7878ff"><tr><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="input_in" bgcolor="#0000FF" border="1"><font color="#ffffff">in</font></td></tr></table></td><td><font color="#000000"><b><u>echo1</u></b></font></td><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="output_out" bgcolor="#0000FF" border="1"><font color="#ffffff">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+		set:output_out -> echo1:input_in [label="" color="#0000FF" fontcolor="#0000FF" fontname=Helvetica fontsize=12]
+	echo2 [label=<<table border="0" cellspacing="0" bgcolor="#e2ffc7"><tr><td><table border="0" cellspacing="5" bgcolor="#e2ffc7"><tr><td port="input_in" bgcolor="#6AA84F" border="1"><font color="#000000">in</font></td></tr></table></td><td><font color="#000000"><b><u>echo2</u></b></font></td><td><table border="0" cellspacing="5" bgcolor="#e2ffc7"><tr><td port="output_out" bgcolor="#6AA84F" border="1"><font color="#000000">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]
+		set2:output_out -> echo2:input_in [label="" color="#6AA84F" fontcolor="#6AA84F" fontname=Helvetica fontsize=12]
+	echo3 [label=<<table border="0" cellspacing="0" bgcolor="#7878ff"><tr><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="input_in" bgcolor="#0000FF" border="1"><font color="#ffffff">in</font></td></tr><tr><td port="input_in2" bgcolor="#0000FF" border="1"><font color="#ffffff">in2</font></td></tr></table></td><td><font color="#000000"><b><u>echo3</u></b></font></td><td><table border="0" cellspacing="5" bgcolor="#7878ff"><tr><td port="output_out" bgcolor="#0000FF" border="1"><font color="#ffffff">out</font></td></tr></table></td></tr></table>> fontname=Helvetica fontsize=12 shape=none]