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[Plot] Follow universal time controller

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Follow displayable area of universal time controller,
WTD-1515
This commit is contained in:
Victor Woeltjen
2015-09-04 13:57:26 -07:00
parent 3ce40ab870
commit c2985d61b7
3 changed files with 51 additions and 8 deletions
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3
platform/features/plot/src/elements/PlotPanZoomStackGroup.js
View File

@ -143,8 +143,7 @@ define(
PlotPanZoomStackGroup.prototype.getDepth = function () {
// All stacks are kept in sync, so look up depth
// from the first one.
return this.stacks.length > 0 ?
this.stacks[0].getDepth() : 0;
return this.stacks.length > 0 ? this.stacks[0].getDepth() : 0;
};
/**

41
platform/features/plot/src/elements/PlotUpdater.js
View File

@ -141,10 +141,10 @@ define(
PlotUpdater.prototype.initializeDomainOffset = function (values) {
this.domainOffset =
((this.domainOffset === undefined) && (values.length > 0)) ?
(values.reduce(function (a, b) {
return (a || 0) + (b || 0);
}, 0) / values.length) :
this.domainOffset;
(values.reduce(function (a, b) {
return (a || 0) + (b || 0);
}, 0) / values.length) :
this.domainOffset;
};
// Expand range slightly so points near edges are visible
@ -159,7 +159,10 @@ define(
// Update dimensions and origin based on extrema of plots
PlotUpdater.prototype.updateBounds = function () {
var bufferArray = this.bufferArray;
var bufferArray = this.bufferArray,
priorDomainOrigin = this.origin[0],
priorDomainDimensions = this.dimensions[0];
if (bufferArray.length > 0) {
this.domainExtrema = bufferArray.map(function (lineBuffer) {
return lineBuffer.getDomainExtrema();
@ -178,6 +181,18 @@ define(
// Enforce some minimum visible area
this.expandRange();
// Suppress domain changes when pinned
if (this.hasSpecificDomainBounds) {
this.origin[0] = priorDomainOrigin;
this.dimensions[0] = priorDomainDimensions;
if (this.following) {
this.origin[0] = Math.max(
this.domainExtrema[1] - this.dimensions[0],
this.origin[0]
);
}
}
// ...then enforce a fixed duration if needed
if (this.fixedDuration !== undefined) {
this.origin[0] = this.origin[0] + this.dimensions[0] -
@ -281,6 +296,22 @@ define(
return this.bufferArray;
};
/**
* Set the start and end boundaries (usually time) for the
* domain axis of this updater.
*/
PlotUpdater.prototype.setDomainBounds = function (start, end) {
this.fixedDuration = end - start;
this.origin[0] = start;
this.dimensions[0] = this.fixedDuration;
// Suppress follow behavior if we have windowed in on the past
this.hasSpecificDomainBounds = true;
this.following = end >= this.domainExtrema[1];
this.updateBounds();
};
/**
* Fill in historical data.
*/