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orient - SVG | MDN
html,
body,
svg {
height: 100%;
}
<svg viewBox="0 0 100 100" xmlns="https://www.w3.org/2000/svg">
<defs>
<marker
id="arrow"
viewBox="0 0 10 10"
refX="5"
refY="5"
markerWidth="6"
markerHeight="6"
orient="auto-start-reverse">
<path d="M 0 0 L 10 5 L 0 10 z" />
</marker>
<marker
id="dataArrow"
viewBox="0 0 10 10"
refX="5"
refY="5"
markerWidth="6"
markerHeight="6"
orient="-65deg">
<path d="M 0 0 L 10 5 L 0 10 z" fill="red" />
</marker>
</defs>
<polyline
points="10,10 10,90 90,90"
fill="none"
stroke="black"
marker-start="url(#arrow)"
marker-end="url(#arrow)" />
<polyline
points="15,80 29,50 43,60 57,30 71,40 85,15"
fill="none"
stroke="grey"
marker-start="url(#dataArrow)"
marker-mid="url(#dataArrow)"
marker-end="url(#dataArrow)" />
</svg>
Value
auto | auto-start-reverse |
<angle><number>
Default value
0
Animatable
Yes (non-additive)
auto
This value indicates that the marker is oriented such that its positive x-axis is pointing in a direction relative to the path at the position the marker is placed.
auto-start-reverse
If placed by marker-startauto were specified. For all other markers, auto-start-reverse means the same as auto.
Note:
This allows a single arrowhead marker to be defined that can be used for both the start and end of a path, i.e., which points outwards from both ends.
<angle>
This value indicates that the marker is oriented such that the specified angle is that measured between the shape's positive x-axis and the marker's positive x-axis.
Note:
For example, if a value of 45 is given, then the marker's positive x-axis would be pointing down and right in the shape's coordinate system.
<number>
This value indicates an angle in degrees. The marker is oriented such that the specified angle is that measured between the shape's positive x-axis and the marker's positive x-axis.
