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import { DirectionEnum } from "@/api/apiStore.gen";
import {
useFlowsheetObjectsIdMap,
useObjectsGraphicObjectsMap,
} from "@/hooks/flowsheetObjects";
class SkPoint {
X: number;
Y: number;
constructor(
public x: number,
public y: number,
) {
this.X = x;
this.Y = y;
}
}
enum Direction {
Up,
Down,
Left,
Right,
}
export type ConnectedObjectInfo = {
position: SkPoint; // absolute coordinates of the object
size: SkPoint; // width and height of the object
rotation: number; // degrees
is_flipped: boolean;
};
export type ConnectionInfo = {
location: SkPoint; // relative offset, between O and 1, of the connections position on the unit op.
direction: DirectionEnum;
};
function add(p1: SkPoint, p2: SkPoint): SkPoint {
return new SkPoint(p1.x + p2.x, p1.y + p2.y);
}
function multiply(p: SkPoint, p2: SkPoint): SkPoint {
return new SkPoint(p.x * p2.x, p.y * p2.y);
}
function snapToGrid(value) {
return value;
}
function getConDirection(end: SkPoint, notch: SkPoint) {
//Gets the direction of connection with reference to the operation it is connected to.
//eg. If a connection is at the top of an operation, it will have the direction Up.
Iif (end.x == notch.x) {
return end.y > notch.y ? Direction.Up : Direction.Down;
}
return end.x > notch.x ? Direction.Left : Direction.Right;
}
type GetSegmentsProps = {
isVertical: boolean;
startConLocation: SkPoint;
endConLocation: SkPoint;
startNotchLocation: SkPoint;
endNotchLocation: SkPoint;
};
function getMidPoints(props: GetSegmentsProps): SkPoint[] {
/*
*Method to set the mid points of a connection line between two operations.
*@param isVertical - A boolean to determine whether the generated points should have the same x or the same y value
*@param startConLocation - The coordinates of the start of the connection
*@param endConLocation - The coordinates of the end of the connection
*@param startNotchLocation - The coordinates of the first point (Notch) from the start
*@param endNotchLocation - The coordinates of the last point (Notch) before the end
*/
const {
isVertical,
startConLocation,
endConLocation,
startNotchLocation,
endNotchLocation,
} = props;
let startPoint: SkPoint;
let endPoint: SkPoint;
//Removed midpoint as it is not currently ever used. Can be used in future and spliced into returned points if connection logic is revisited
// let midPoint: SkPoint | undefined
const avgX = (a: SkPoint, b: SkPoint) => (a.x + b.x) / 2;
const avgY = (a: SkPoint, b: SkPoint) => (a.y + b.y) / 2;
const startConDirection = getConDirection(
startConLocation,
startNotchLocation,
);
const endConDirection = getConDirection(endConLocation, endNotchLocation);
if (isVertical) {
startPoint = new SkPoint(
avgX(startNotchLocation, endNotchLocation),
startNotchLocation.y,
);
endPoint = new SkPoint(
avgX(startNotchLocation, endNotchLocation),
endNotchLocation.y,
);
Iif (
startConDirection == Direction.Up ||
startConDirection == Direction.Down
) {
if (endConDirection == Direction.Left) {
startPoint.x = Math.min(
avgX(startNotchLocation, endNotchLocation),
endNotchLocation.x,
);
endPoint.x = Math.min(
avgX(startNotchLocation, endNotchLocation),
endNotchLocation.x,
);
I} else if (endConDirection == Direction.Right) {
startPoint.x = Math.max(
avgX(startNotchLocation, endNotchLocation),
endNotchLocation.x,
);
endPoint.x = Math.max(
avgX(startNotchLocation, endNotchLocation),
endNotchLocation.x,
);
}
I} else if (startConDirection == Direction.Left) {
startPoint.x = Math.min(
avgX(startNotchLocation, endNotchLocation),
startNotchLocation.x,
);
endPoint.x = Math.min(
avgX(startNotchLocation, endNotchLocation),
startNotchLocation.x,
);
Iif (endConDirection == Direction.Left) {
endPoint.x = Math.min(startNotchLocation.x, endNotchLocation.x);
startPoint.x = Math.min(startNotchLocation.x, endNotchLocation.x);
}
} else if (startConDirection == Direction.Right) {
startPoint.x = Math.max(
avgX(startNotchLocation, endNotchLocation),
startNotchLocation.x,
);
endPoint.x = Math.max(
avgX(startNotchLocation, endNotchLocation),
startNotchLocation.x,
);
Iif (endConDirection == Direction.Right) {
endPoint.x = Math.max(startNotchLocation.x, endNotchLocation.x);
startPoint.x = Math.max(startNotchLocation.x, endNotchLocation.x);
}
}
} else {
startPoint = new SkPoint(
startNotchLocation.x,
avgY(startNotchLocation, endNotchLocation),
);
endPoint = new SkPoint(
endNotchLocation.x,
avgY(startNotchLocation, endNotchLocation),
);
if (
startConDirection == Direction.Left ||
startConDirection == Direction.Right
) {
Iif (endConDirection == Direction.Up) {
startPoint.y = Math.min(
avgY(startNotchLocation, endNotchLocation),
endNotchLocation.y,
);
endPoint.y = Math.min(
avgY(startNotchLocation, endNotchLocation),
endNotchLocation.y,
);
I} else if (endConDirection == Direction.Down) {
startPoint.y = Math.max(
avgY(startNotchLocation, endNotchLocation),
endNotchLocation.y,
);
endPoint.y = Math.max(
avgY(startNotchLocation, endNotchLocation),
endNotchLocation.y,
);
}
E} else if (startConDirection == Direction.Up) {
startPoint.y = Math.min(
avgY(startNotchLocation, endNotchLocation),
startNotchLocation.y,
);
endPoint.y = Math.min(
avgY(startNotchLocation, endNotchLocation),
startNotchLocation.y,
);
Iif (endConDirection == Direction.Up) {
startPoint.y = Math.min(startNotchLocation.y, endNotchLocation.y);
endPoint.y = Math.min(startNotchLocation.y, endNotchLocation.y);
}
} else {
startPoint.y = Math.max(
avgY(startNotchLocation, endNotchLocation),
startNotchLocation.y,
);
endPoint.y = Math.max(
avgY(startNotchLocation, endNotchLocation),
startNotchLocation.y,
);
Iif (endConDirection == Direction.Down) {
startPoint.y = Math.max(startNotchLocation.y, endNotchLocation.y);
endPoint.y = Math.max(startNotchLocation.y, endNotchLocation.y);
}
}
}
let points: SkPoint[] = [startPoint, endPoint];
// if(midPoint){points.splice(1,0,midPoint)}
return points;
}
function getUnitOpRotation(startOp, endOp) {
//Gets the rotation of the unit operation, NOT the stream
//Currently determines which is the unit op based on size, if refactoring, could look into adjusting this.
let rotationUnitOp;
if (startOp.size.x === 100) {
rotationUnitOp = startOp;
} else if (endOp.size.x === 100) {
rotationUnitOp = endOp;
} else E{
rotationUnitOp = endOp;
}
return rotationUnitOp;
}
function checkVertical(
startNotchLocation: SkPoint,
endNotchLocation: SkPoint,
startOp: ConnectedObjectInfo,
endOp: ConnectedObjectInfo,
) {
//Determines whether the middle segment of the line should be vertical or horizontal
const rotationUnitOp = getUnitOpRotation(startOp, endOp);
if (rotationUnitOp.rotation == 0) {
return rotationUnitOp.is_flipped //Vertical if end op is on the same side as the outlet from start op
? Math.sign(startNotchLocation.x - endNotchLocation.x) === 1
: Math.sign(startNotchLocation.x - endNotchLocation.x) === -1;
E} else if (rotationUnitOp.rotation == 90) {
//Vertical if end op is NOT on the same side as outlet from start op
return rotationUnitOp.is_flipped
? Math.sign(startNotchLocation.y - endNotchLocation.y) === -1
: Math.sign(startNotchLocation.y - endNotchLocation.y) === 1;
I} else if (rotationUnitOp.rotation == 180) {
return rotationUnitOp.is_flipped
? Math.sign(startNotchLocation.x - endNotchLocation.x) === -1
: Math.sign(startNotchLocation.x - endNotchLocation.x) === 1;
}
return rotationUnitOp.is_flipped
? Math.sign(startNotchLocation.y - endNotchLocation.y) === 1
: Math.sign(startNotchLocation.y - endNotchLocation.y) === -1;
}
function rotate(p: SkPoint, rotation: number): SkPoint {
switch (rotation) {
case 0:
return p;
case 90:
return new SkPoint(-p.y, p.x);
case 180:
return new SkPoint(-p.x, -p.y);
case 270:
return new SkPoint(p.y, -p.x);
default:
throw new Error("Only 90, 180, and 270 degrees are supported.");
}
}
function flip(p: SkPoint, flipH: boolean, rotation: number): SkPoint {
Iif (flipH) {
switch (rotation) {
case 0:
p.x = -p.x;
return p;
case 90:
p.y = -p.y;
return p;
case 180:
p.x = -p.x;
return p;
case 270:
p.y = -p.y;
return p;
default:
throw new Error("Only 90, 180, and 270 degrees are supported.");
}
}
return p;
}
const half = new SkPoint(0.5, 0.5);
function convertToCenterRelative(point: SkPoint): SkPoint {
return new SkPoint((point.x - 0.5) * 2, (point.y - 0.5) * 2);
}
function getConnectionLinePoints(
startOp: ConnectedObjectInfo,
startCon: ConnectionInfo,
endOp: ConnectedObjectInfo,
endCon: ConnectionInfo,
) {
/*
*Function to get the points for drawing the connection line between operations on the flowsheet.
*Sets the locations for the starts and ends of the connection, as well as the notch points that are offset from each operation.
*The first and last line segments are between the startCon/encCon locations and their respective notch points.
*This method ensures that each of these line segments is oriented correctly based on the rotation and flip of their respective operation.
*This method then calls "getMidPoints" to determine the coordinates of the points that make up the middle section of the connection.
*/
const convertedStartConLocation = convertToCenterRelative(startCon.location);
const convertedEndConLocation = convertToCenterRelative(endCon.location);
const startOpSizeHalf = multiply(startOp.size, half);
const endOpSizeHalf = multiply(endOp.size, half);
// get locations relative to the center of the object
const LocalStartLocation = multiply(
startOpSizeHalf,
convertedStartConLocation,
);
const LocalNotchStartLocation = add(LocalStartLocation, new SkPoint(10, 0)); // add notch offset
const LocalEndLocation = multiply(endOpSizeHalf, convertedEndConLocation);
const LocalNotchEndLocation = add(LocalEndLocation, new SkPoint(-10, 0)); // add notch offset
// rotate
const rotatedStartLocation = rotate(LocalStartLocation, startOp.rotation);
const rotatedEndLocation = rotate(LocalEndLocation, endOp.rotation);
const rotatedNotchStartLocation = rotate(
LocalNotchStartLocation,
startOp.rotation,
);
const rotatedNotchEndLocation = rotate(LocalNotchEndLocation, endOp.rotation);
// flip
const flippedStartLocation = flip(
rotatedStartLocation,
startOp.is_flipped,
startOp.rotation,
);
const flippedEndLocation = flip(
rotatedEndLocation,
endOp.is_flipped,
startOp.rotation,
);
const flippedNotchStartLocation = flip(
rotatedNotchStartLocation,
startOp.is_flipped,
startOp.rotation,
);
const flippedNotchEndLocation = flip(
rotatedNotchEndLocation,
endOp.is_flipped,
startOp.rotation,
);
// add the object position to get the absolute position
const startConLocation = add(
startOp.position,
add(flippedStartLocation, startOpSizeHalf),
);
const startNotchLocation = add(
startOp.position,
add(flippedNotchStartLocation, startOpSizeHalf),
);
const startPoints: SkPoint[] = [startConLocation, startNotchLocation];
const endConLocation = add(
endOp.position,
add(flippedEndLocation, endOpSizeHalf),
);
const endNotchLocation = add(
endOp.position,
add(flippedNotchEndLocation, endOpSizeHalf),
);
const endPoints: SkPoint[] = [endNotchLocation, endConLocation];
const isVertical = checkVertical(
startNotchLocation,
endNotchLocation,
startOp,
endOp,
);
//Get the middle points of the connection line
const midPoints = getMidPoints({
isVertical,
startConLocation,
endConLocation,
startNotchLocation,
endNotchLocation,
});
// Create the array of points
const points: SkPoint[] = startPoints.concat(midPoints).concat(endPoints);
return { points, isVertical };
}
function snapToGridPoint(point) {
return new SkPoint(snapToGrid(point.x), snapToGrid(point.y));
}
type ConnectionGraphicProps = {
startOp: ConnectedObjectInfo;
endOp: ConnectedObjectInfo;
startCon: ConnectionInfo;
endCon: ConnectionInfo;
showArrow?: boolean;
disabled?: boolean;
strokeColor?: string;
isEnergy?: boolean;
};
function checkTooSmall(isVertical, point1, point2, rotatedOP, pointerSize) {
Iif (rotatedOP.rotation === 90 || rotatedOP.rotation === 270) {
return isVertical
? Math.abs(point1.x - point2.x) < pointerSize * 3
: Math.abs(point1.y - point2.y) < pointerSize * 3;
}
return isVertical
? Math.abs(point1.y - point2.y) < pointerSize * 3
: Math.abs(point1.x - point2.x) < pointerSize * 3;
}
function createEndpoint(isVertical, point1, point2, rotatedOP, pointerSize) {
// Handle special angle cases (90° and 270°)
Iif (rotatedOP.rotation === 90 || rotatedOP.rotation === 270) {
return isVertical
? new SkPoint(
point2.x + pointerSize * Math.sign(point1.x - point2.x),
point2.y,
)
: new SkPoint(
point2.x,
point2.y + pointerSize * Math.sign(point1.y - point2.y),
);
}
// Default case for other angles
return isVertical
? new SkPoint(
point2.x,
point2.y + pointerSize * Math.sign(point1.y - point2.y),
)
: new SkPoint(
point2.x + pointerSize * Math.sign(point1.x - point2.x),
point2.y,
);
}
export const ConnectionGraphic = (props: ConnectionGraphicProps) => {
/*
*Returns a line to illustrate the connection between operations on the flowsheet
*/
const { points, isVertical } = getConnectionLinePoints(
props.startOp,
props.startCon,
props.endOp,
props.endCon,
);
let arrowPoints: number[] = [];
const pointerSize = 10;
Iif (props.showArrow) {
// Calculate the position for the arrow
let point1 = points[2];
let point2 = points[3];
let midPoint = new SkPoint(0, 0);
const tooSmall = checkTooSmall(
isVertical,
point1,
point2,
getUnitOpRotation(props.startOp, props.endOp),
pointerSize,
);
if (tooSmall) {
// arrow would be too large, draw it on the first line rather than the middle
point1 = points[1];
point2 = points[2];
midPoint = isVertical
? new SkPoint(
point2.x - pointerSize * -0 * Math.sign(point1.x - point2.x),
(point1.y + point2.y) / 2,
)
: new SkPoint(
(point1.x + point2.x) / 2,
point2.y - pointerSize * -0 * Math.sign(point1.y - point2.y),
);
} else {
midPoint = createEndpoint(
isVertical,
point1,
point2,
getUnitOpRotation(props.startOp, props.endOp),
pointerSize,
);
}
arrowPoints = [point1.x, point1.y, midPoint.x, midPoint.y];
}
return (
<>
<Line
stroke={
props.disabled ? "#aaaaaa" : "#404040"
}
strokeWidth={2}
points={points.flatMap((point) => [point.x, point.y])}
tension={0}
/>
{props.showArrow && (
<Arrow
points={arrowPoints}
pointerLength={pointerSize}
pointerWidth={pointerSize}
fill={props.disabled ? "#aaaaaa" : "#404040"}
stroke={props.disabled ? "#aaaaaa" : "#404040"}
strokeWidth={2}
/>
)}
</>
);
};
export function LogicConnectionGraphic({
fromObjectId,
toObjectId,
}: {
fromObjectId: number;
toObjectId: number;
}) {
const simulationObjectsById = useFlowsheetObjectsIdMap();
const objectsGraphicObjectsMap = useObjectsGraphicObjectsMap();
const fromObject = simulationObjectsById.get(fromObjectId);
const toObject = simulationObjectsById.get(toObjectId);
if (!fromObject || !toObject) return null;
const fromGraphicObject = objectsGraphicObjectsMap.get(fromObjectId);
const toGraphicObject = objectsGraphicObjectsMap.get(toObjectId);
if (!fromGraphicObject || !toGraphicObject) return null;
const points: SkPoint[] = [];
points.push(
new SkPoint(
fromGraphicObject.x! + fromGraphicObject.width! / 2,
fromGraphicObject.y! + fromGraphicObject.height! / 2,
),
);
// intermediate point
points.push(
new SkPoint(
toGraphicObject.x! + toGraphicObject.width! / 2,
fromGraphicObject.y! + fromGraphicObject.height! / 2,
),
);
points.push(
new SkPoint(
toGraphicObject.x! + toGraphicObject.width! / 2,
toGraphicObject.y! + toGraphicObject.height! / 2,
),
);
return (
<Line
stroke="#888"
strokeWidth={2}
dash={[10, 10]}
points={points.flatMap((point) => [point.x, point.y])}
/>
);
}
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