From a759b1c59e63f5515a03183fba79d36491b2d717 Mon Sep 17 00:00:00 2001
From: emile <hanemile@protonmail.com>
Date: Fri, 19 Oct 2018 17:49:44 +0200
Subject: Adjusted the method for defining how big a star should be drawn.

---
 draw/draw.go | 10 ++--------
 main.go      |  9 ++++-----
 2 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/draw/draw.go b/draw/draw.go
index d1166b4..06d76e2 100644
--- a/draw/draw.go
+++ b/draw/draw.go
@@ -36,14 +36,14 @@ func saveImage(dc *gg.Context, path string) {
 // drawStar draws the given stars to the given context
 func drawStar(dc *gg.Context, star structs.Star2D) {
 	// User the value below to controll how big the stars are overall
-	var StarScalingFactor float64 = 1
+	var starScalingFactor = 50.0
 
 	// Default Star Size
 	S := 2.0
 
 	// Calculate the Stars Size according to its Mass (Maximal size = 5)
 	if star.M < 5e4 {
-		S = float64(math.Ceil(star.M/4e4) * StarScalingFactor)
+		S = float64(math.Ceil(math.Sqrt(star.M)) / starScalingFactor)
 	} else {
 		S = 5.0
 	}
@@ -111,12 +111,6 @@ func Slice(slice []structs.Star2D, path string) {
 
 	dc.SetRGB(1, 1, 1)
 
-	// drawing the 4 big stars as bigger white dots
-	//dc.DrawCircle(600, 600, 5)
-	//dc.DrawCircle(-600, 600, 5)
-	//dc.DrawCircle(-600, 0, 5)
-	//dc.DrawCircle(600, -600, 5)
-
 	dc.Fill()
 
 	// save the plot to the given path
diff --git a/main.go b/main.go
index de319c4..97d9986 100644
--- a/main.go
+++ b/main.go
@@ -15,12 +15,10 @@ func main() {
 	var threads int = 8
 	var frames int = 1
 	var rangeStart int = 0
-	var rangeEnd int = 5000
+	var rangeEnd int = 50000
 
 	// the slice starsSlice stores the star structures
-	starsSlice := []structs.Star2D{
-		{C: structs.Vec2{}, M: 5E8},
-	}
+	starsSlice := []structs.Star2D{}
 
 	logplus.LogNeutral("Opening the csv")
 	starsSlice = csv.Import("data/U_ALL.csv", rangeStart, rangeEnd, starsSlice)
@@ -36,8 +34,9 @@ func main() {
 		logplus.LogNeutral("Calculate the acting accelerations")
 		starsSlice = forces.CalcAllAccelerations(starsSlice, threads)
 
-		outputName := fmt.Sprintf("out_%d.png", i+1)
+		outputName := fmt.Sprintf("out_%d.png", i+3)
 		logplus.LogNeutral(fmt.Sprintf("draw the slice and save it to %s\n", outputName))
 		draw.Slice(starsSlice, outputName)
+
 	}
 }
-- 
cgit 1.4.1