From f2f4c7439052f57595f4110d4f63ab92e38ed216 Mon Sep 17 00:00:00 2001
From: Helge Norberg <helge.norberg@svt.se>
Date: Tue, 14 Feb 2017 18:12:45 +0100
Subject: [PATCH] [scene] Created a bar diagram example scene demonstrating the
 use of timelines with CG NEXT support and further use case of the animate()
 function

---
 .../server/template/scene/diagram/bar.scene   | 31 ++++++
 .../template/scene/diagram/diagram.scene      | 98 +++++++++++++++++++
 2 files changed, 129 insertions(+)
 create mode 100644 deploy/general/server/template/scene/diagram/bar.scene
 create mode 100644 deploy/general/server/template/scene/diagram/diagram.scene

diff --git a/deploy/general/server/template/scene/diagram/bar.scene b/deploy/general/server/template/scene/diagram/bar.scene
new file mode 100644
index 000000000..3a7cee349
--- /dev/null
+++ b/deploy/general/server/template/scene/diagram/bar.scene
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<scene width="400" height="1080" xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/CasparCG/Server/2.1.0/core/producer/scene/scene.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema">
+  <variables>
+    <variable type="number" public="true" id="value">0</variable>
+    <variable type="number" public="true" id="max">1</variable>
+
+    <variable type="number" public="false" id="margin_top">200</variable>
+    <variable type="number" public="false" id="margin_bottom">100</variable>
+    <variable type="number" public="false" id="bar_height">${scene_height - variable.margin_top - variable.margin_bottom}</variable>
+    <!-- The animate function creates a tension between the input value and the output value, delaying the change by 12 frames in this case -->
+    <variable type="number" public="false" id="current_bar_height">${animate(value / max, 12, "easeoutquad") * variable.bar_height}</variable>
+  </variables>
+
+  <layers>
+    <layer id="bar">
+      <producer>RED</producer>
+      <x>0</x>
+      <y>${variable.margin_top + variable.bar_height - variable.current_bar_height}</y>
+      <width>${scene_width}</width>
+      <height>${variable.current_bar_height}</height>
+    </layer>
+    <layer id="text">
+      <producer>[TEXT] "" 0 0 size 30 color #FFFFFF font LiberationSans</producer>
+      <x>${scene_width / 2 - layer.text.width / 2}</x>
+      <y>${variable.margin_top - 100}</y>
+      <parameters>
+        <text>${value}</text>
+      </parameters>
+    </layer>
+  </layers>
+</scene>
diff --git a/deploy/general/server/template/scene/diagram/diagram.scene b/deploy/general/server/template/scene/diagram/diagram.scene
new file mode 100644
index 000000000..c1a967741
--- /dev/null
+++ b/deploy/general/server/template/scene/diagram/diagram.scene
@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<scene width="1920" height="1080" xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/CasparCG/Server/2.1.0/core/producer/scene/scene.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema">
+  <!--
+  Example scene with animating bar chart. CG NEXT for next data series. 
+   -->
+
+  <variables>
+    <variable type="number" public="true" id="max">100</variable>
+    <variable type="number" public="true" id="series1_bar1">50</variable>
+    <variable type="number" public="true" id="series1_bar2">70</variable>
+    <variable type="number" public="true" id="series1_bar3">100</variable>
+    <variable type="number" public="true" id="series1_bar4">10</variable>
+    <variable type="number" public="true" id="series2_bar1">49</variable>
+    <variable type="number" public="true" id="series2_bar2">10</variable>
+    <variable type="number" public="true" id="series2_bar3">20</variable>
+    <variable type="number" public="true" id="series2_bar4">20</variable>
+    <variable type="number" public="true" id="series3_bar1">60</variable>
+    <variable type="number" public="true" id="series3_bar2">20</variable>
+    <variable type="number" public="true" id="series3_bar3">90</variable>
+    <variable type="number" public="true" id="series3_bar4">30</variable>
+
+    <variable type="number" public="false" id="margin_left">100</variable>
+    <variable type="number" public="false" id="bar_distance">50</variable>
+  </variables>
+
+  <layers>
+    <layer id="bar1">
+      <producer>scene/diagram/bar</producer>
+      <x>${variable.margin_left}</x>
+      <y>0</y>
+      <parameters>
+        <max>${max}</max>
+      </parameters>
+    </layer>
+    <layer id="bar2">
+      <producer>scene/diagram/bar</producer>
+      <x>${layer.bar1.x + layer.bar1.width + variable.bar_distance}</x>
+      <y>0</y>
+      <parameters>
+        <max>${max}</max>
+      </parameters>
+    </layer>
+    <layer id="bar3">
+      <producer>scene/diagram/bar</producer>
+      <x>${layer.bar2.x + layer.bar2.width + variable.bar_distance}</x>
+      <y>0</y>
+      <parameters>
+        <max>${max}</max>
+      </parameters>
+    </layer>
+    <layer id="bar4">
+      <producer>scene/diagram/bar</producer>
+      <x>${layer.bar3.x + layer.bar3.width + variable.bar_distance}</x>
+      <y>0</y>
+      <parameters>
+        <max>${max}</max>
+      </parameters>
+    </layer>
+  </layers>
+
+  <marks>
+    <mark at="0" type="start" label="intro" />
+    <mark at="100" type="stop" />
+    <mark at="200" type="start" label="series2" />
+    <mark at="300" type="stop" />
+    <mark at="400" type="start" label="series3" />
+    <mark at="500" type="stop" />
+    <mark at="600" type="start" label="outro" />
+    <mark at="620" type="remove" />
+  </marks>
+
+  <timelines>
+    <timeline variable="layer.bar1.parameter.value">
+      <keyframe at="0">${series1_bar1}</keyframe>
+      <keyframe at="200">${series2_bar1}</keyframe>
+      <keyframe at="400">${series3_bar1}</keyframe>
+      <keyframe at="600">0</keyframe>
+    </timeline>
+    <timeline variable="layer.bar2.parameter.value">
+      <keyframe at="0">${series1_bar2}</keyframe>
+      <keyframe at="200">${series2_bar2}</keyframe>
+      <keyframe at="400">${series3_bar2}</keyframe>
+      <keyframe at="600">0</keyframe>
+    </timeline>
+    <timeline variable="layer.bar3.parameter.value">
+      <keyframe at="0">${series1_bar3}</keyframe>
+      <keyframe at="200">${series2_bar3}</keyframe>
+      <keyframe at="400">${series3_bar3}</keyframe>
+      <keyframe at="600">0</keyframe>
+    </timeline>
+    <timeline variable="layer.bar4.parameter.value">
+      <keyframe at="0">${series1_bar4}</keyframe>
+      <keyframe at="200">${series2_bar4}</keyframe>
+      <keyframe at="400">${series3_bar4}</keyframe>
+      <keyframe at="600">0</keyframe>
+    </timeline>
+  </timelines>
+</scene>
-- 
2.39.2