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Implement text rendering along paths

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This commit also changes the TextReplay.drawText() signature, and moves
geometry calculation into drawText(). This improves performance where no
text needs to be rendered (TextStyle.getText() == ''), which is used often
in applications.
This commit is contained in:
Andreas Hocevar
2017-09-07 23:32:31 +02:00
parent 37dcd79a86
commit efc86d59b0
12 changed files with 640 additions and 189 deletions
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22
src/ol/renderer/vector.js
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@@ -58,7 +58,7 @@ ol.renderer.vector.renderCircleGeometry_ = function(replayGroup, geometry, style
var textReplay = replayGroup.getReplay(
style.getZIndex(), ol.render.ReplayType.TEXT);
textReplay.setTextStyle(textStyle);
textReplay.drawText(geometry.getCenter(), 0, 2, 2, geometry, feature);
textReplay.drawText(geometry, feature);
}
};
@@ -181,7 +181,7 @@ ol.renderer.vector.renderLineStringGeometry_ = function(replayGroup, geometry, s
var textReplay = replayGroup.getReplay(
style.getZIndex(), ol.render.ReplayType.TEXT);
textReplay.setTextStyle(textStyle);
textReplay.drawText(geometry.getFlatMidpoint(), 0, 2, 2, geometry, feature);
textReplay.drawText(geometry, feature);
}
};
@@ -206,9 +206,7 @@ ol.renderer.vector.renderMultiLineStringGeometry_ = function(replayGroup, geomet
var textReplay = replayGroup.getReplay(
style.getZIndex(), ol.render.ReplayType.TEXT);
textReplay.setTextStyle(textStyle);
var flatMidpointCoordinates = geometry.getFlatMidpoints();
textReplay.drawText(flatMidpointCoordinates, 0,
flatMidpointCoordinates.length, 2, geometry, feature);
textReplay.drawText(geometry, feature);
}
};
@@ -234,9 +232,7 @@ ol.renderer.vector.renderMultiPolygonGeometry_ = function(replayGroup, geometry,
var textReplay = replayGroup.getReplay(
style.getZIndex(), ol.render.ReplayType.TEXT);
textReplay.setTextStyle(textStyle);
var flatInteriorPointCoordinates = geometry.getFlatInteriorPoints();
textReplay.drawText(flatInteriorPointCoordinates, 0,
flatInteriorPointCoordinates.length, 2, geometry, feature);
textReplay.drawText(geometry, feature);
}
};
@@ -264,8 +260,7 @@ ol.renderer.vector.renderPointGeometry_ = function(replayGroup, geometry, style,
var textReplay = replayGroup.getReplay(
style.getZIndex(), ol.render.ReplayType.TEXT);
textReplay.setTextStyle(textStyle);
textReplay.drawText(geometry.getFlatCoordinates(), 0, 2, 2, geometry,
feature);
textReplay.drawText(geometry, feature);
}
};
@@ -293,9 +288,7 @@ ol.renderer.vector.renderMultiPointGeometry_ = function(replayGroup, geometry, s
var textReplay = replayGroup.getReplay(
style.getZIndex(), ol.render.ReplayType.TEXT);
textReplay.setTextStyle(textStyle);
var flatCoordinates = geometry.getFlatCoordinates();
textReplay.drawText(flatCoordinates, 0, flatCoordinates.length,
geometry.getStride(), geometry, feature);
textReplay.drawText(geometry, feature);
}
};
@@ -321,8 +314,7 @@ ol.renderer.vector.renderPolygonGeometry_ = function(replayGroup, geometry, styl
var textReplay = replayGroup.getReplay(
style.getZIndex(), ol.render.ReplayType.TEXT);
textReplay.setTextStyle(textStyle);
textReplay.drawText(
geometry.getFlatInteriorPoint(), 0, 2, 2, geometry, feature);
textReplay.drawText(geometry, feature);
}
};