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-rw-r--r--Source/SPGeometryDataView.m151
1 files changed, 96 insertions, 55 deletions
diff --git a/Source/SPGeometryDataView.m b/Source/SPGeometryDataView.m
index 95d9c7db..61dc6f25 100644
--- a/Source/SPGeometryDataView.m
+++ b/Source/SPGeometryDataView.m
@@ -24,11 +24,22 @@
#import "SPGeometryDataView.h"
+@interface SPGeometryDataView (PrivateAPI)
+
+- (NSPoint)_normalizePoint:(NSPoint)aPoint;
+- (void)_drawPoint:(NSPoint)aPoint;
+
+@end
+
+#pragma mark -
@implementation SPGeometryDataView
/**
* Initialize SPGeometryDataView object with default targetDimension
+ *
+ * @param coord Contains all necessary data to draw the geometry image
+ *
*/
- (id)initWithCoordinates:(NSDictionary*)coord
{
@@ -37,12 +48,14 @@
/**
* Initialize SPGeometryDataView object
+ *
+ * @param coord Contains all necessary data to draw the geometry image
+ *
+ * @param targetDimension Sets the maximum size (height or width) of the image
*/
- (id)initWithCoordinates:(NSDictionary*)coord targetDimension:(CGFloat)targetDimension
{
- CGFloat maxDim;
-
margin_offset = 10.0;
type = [coord objectForKey:@"type"];
coordinates = [coord objectForKey:@"coordinates"];
@@ -55,7 +68,7 @@
width = x_max - x_min;
height = y_max - y_min;
- maxDim = (width > height) ? width : height;
+ CGFloat maxDim = (width > height) ? width : height;
if(maxDim != 0)
zoom_factor = targetDimension/maxDim;
else
@@ -71,31 +84,18 @@
;
}
- return self;
-}
+ lineColor = [NSColor blackColor];
+ borderLineColor = [NSColor grayColor];
+ backgroundColor = [NSColor colorWithCalibratedRed:1 green:1 blue:1 alpha:0.96];
+ pointFillColor = [NSColor redColor];
+ pointStrokeColor = [NSColor grayColor];
+ polygonFillColor1 = [NSColor colorWithCalibratedRed:0.0 green:1.0 blue:0.0 alpha:0.1];
+ polygonFillColor2 = [NSColor colorWithCalibratedRed:0.0 green:1.0 blue:1.0 alpha:0.1];
+ polygonFillColor3 = [NSColor colorWithCalibratedRed:1.0 green:0.0 blue:0.0 alpha:0.1];
-- (NSPoint)normalizePoint:(NSPoint)aPoint
-{
-
- aPoint.x*=zoom_factor;
- aPoint.y*=zoom_factor;
- aPoint.x-=x_min;
- aPoint.y-=y_min;
- aPoint.x+=margin_offset;
- aPoint.y+=margin_offset;
- return aPoint;
-}
-
-- (void)drawPoint:(NSPoint)aPoint
-{
-
- NSBezierPath *circlePath = [NSBezierPath bezierPath];
- [circlePath appendBezierPathWithOvalInRect:NSMakeRect(aPoint.x-5,aPoint.y-5,10,10)];
- [[NSColor grayColor] setStroke];
- [[NSColor redColor] setFill];
- [circlePath stroke];
- [circlePath fill];
+ lineWidth = 1.0;
+ return self;
}
- (void)drawRect:(NSRect)dirtyRect
@@ -104,9 +104,6 @@
if(!type || ![type length] || !coordinates || ![coordinates count]) return;
NSBezierPath *path;
- NSColor *polyFillColor1 = [NSColor colorWithCalibratedRed:0.0 green:1.0 blue:0.0 alpha:0.1];
- NSColor *polyFillColor2 = [NSColor colorWithCalibratedRed:0.0 green:1.0 blue:1.0 alpha:0.1];
- NSColor *polyFillColor3 = [NSColor colorWithCalibratedRed:1.0 green:0.0 blue:0.0 alpha:0.1];
BOOL isFirst = YES;
NSPoint aPoint;
@@ -114,60 +111,62 @@
// Draw a rect as border
path = [NSBezierPath bezierPathWithRect:[self bounds]];
[path setLineWidth:0.1];
- [[NSColor colorWithCalibratedRed:1 green:1 blue:1 alpha:0.96] set];
+ [backgroundColor set];
[path fill];
- [[NSColor grayColor] set];
+ [borderLineColor set];
[path stroke];
path = [NSBezierPath bezierPath];
- [[NSColor blackColor] set];
- [path setLineWidth:1];
+ [lineColor set];
+ [path setLineWidth:lineWidth];
if ([type hasSuffix:@"POINT"]) {
for(NSString* coord in coordinates)
- [self drawPoint:[self normalizePoint:NSPointFromString(coord)]];
+ [self _drawPoint:[self _normalizePoint:NSPointFromString(coord)]];
}
else if([type hasSuffix:@"LINESTRING"]) {
for(NSArray* lines in coordinates) {
isFirst = YES;
path = [NSBezierPath bezierPath];
+ [path setLineWidth:lineWidth];
for(NSString* coord in lines) {
- aPoint = [self normalizePoint:NSPointFromString(coord)];
+ aPoint = [self _normalizePoint:NSPointFromString(coord)];
if(isFirst) {
[path moveToPoint:aPoint];
isFirst = NO;
} else {
[path lineToPoint:aPoint];
}
- [self drawPoint:aPoint];
+ [self _drawPoint:aPoint];
}
- [[NSColor blackColor] setStroke];
+ [lineColor setStroke];
[path stroke];
}
}
else if([type hasSuffix:@"POLYGON"]) {
- NSUInteger i = 0;
+ NSUInteger i = 0; // polygon fill color alternating
for(NSArray* polygons in coordinates) {
isFirst = YES;
path = [NSBezierPath bezierPath];
+ [path setLineWidth:lineWidth];
for(NSString* coord in polygons) {
- aPoint = [self normalizePoint:NSPointFromString(coord)];
+ aPoint = [self _normalizePoint:NSPointFromString(coord)];
if(isFirst) {
[path moveToPoint:aPoint];
isFirst = NO;
} else {
[path lineToPoint:aPoint];
}
- [self drawPoint:aPoint];
+ [self _drawPoint:aPoint];
}
- [[NSColor blackColor] setStroke];
+ [lineColor setStroke];
switch(i) {
- case 0: [polyFillColor1 setFill];
+ case 0: [polygonFillColor1 setFill];
break;
- case 1: [polyFillColor2 setFill];
+ case 1: [polygonFillColor2 setFill];
break;
- case 2: [polyFillColor3 setFill];
+ case 2: [polygonFillColor3 setFill];
break;
}
[path fill];
@@ -178,48 +177,53 @@
}
else if([type isEqualToString:@"GEOMETRYCOLLECTION"]) {
+ // First array contains all points
for(NSString* coord in [coordinates objectAtIndex:0]) {
- [self drawPoint:[self normalizePoint:NSPointFromString(coord)]];
+ [self _drawPoint:[self _normalizePoint:NSPointFromString(coord)]];
}
+ // Second array contains all linestrings
for(NSArray* lines in [coordinates objectAtIndex:1]) {
isFirst = YES;
path = [NSBezierPath bezierPath];
+ [path setLineWidth:lineWidth];
for(NSString* coord in lines) {
- aPoint = [self normalizePoint:NSPointFromString(coord)];
+ aPoint = [self _normalizePoint:NSPointFromString(coord)];
if(isFirst) {
[path moveToPoint:aPoint];
isFirst = NO;
} else {
[path lineToPoint:aPoint];
}
- [self drawPoint:aPoint];
+ [self _drawPoint:aPoint];
}
- [[NSColor blackColor] setStroke];
+ [lineColor setStroke];
[path stroke];
}
- NSUInteger i = 0;
+ // Third array contains all polygons
+ NSUInteger i = 0; // polygon fill color alternating
for(NSArray* polygons in [coordinates objectAtIndex:2]) {
isFirst = YES;
path = [NSBezierPath bezierPath];
+ [path setLineWidth:lineWidth];
for(NSString* coord in polygons) {
- aPoint = [self normalizePoint:NSPointFromString(coord)];
+ aPoint = [self _normalizePoint:NSPointFromString(coord)];
if(isFirst) {
[path moveToPoint:aPoint];
isFirst = NO;
} else {
[path lineToPoint:aPoint];
}
- [self drawPoint:aPoint];
+ [self _drawPoint:aPoint];
}
- [[NSColor blackColor] setStroke];
+ [lineColor setStroke];
switch(i) {
- case 0: [polyFillColor1 setFill];
+ case 0: [polygonFillColor1 setFill];
break;
- case 1: [polyFillColor2 setFill];
+ case 1: [polygonFillColor2 setFill];
break;
- case 2: [polyFillColor3 setFill];
+ case 2: [polygonFillColor3 setFill];
break;
}
[path fill];
@@ -275,3 +279,40 @@
}
@end
+
+#pragma mark -
+#pragma mark PrivateAPI
+
+@implementation SPGeometryDataView (PrivateAPI)
+
+/**
+ * Converts original NSPoint to target coordinates
+ */
+- (NSPoint)_normalizePoint:(NSPoint)aPoint
+{
+
+ aPoint.x*=zoom_factor;
+ aPoint.y*=zoom_factor;
+ aPoint.x-=x_min;
+ aPoint.y-=y_min;
+ aPoint.x+=margin_offset;
+ aPoint.y+=margin_offset;
+ return aPoint;
+}
+
+/**
+ * Draw a point at aPoint representing the original coordinate
+ */
+- (void)_drawPoint:(NSPoint)aPoint
+{
+
+ NSBezierPath *circlePath = [NSBezierPath bezierPath];
+ [circlePath appendBezierPathWithOvalInRect:NSMakeRect(aPoint.x-5,aPoint.y-5,10,10)];
+ [pointStrokeColor setStroke];
+ [pointFillColor setFill];
+ [circlePath stroke];
+ [circlePath fill];
+
+}
+
+@end
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 16:13:22 +0000