From ff02e8c0d72908250f09d42126b138420c26400f Mon Sep 17 00:00:00 2001
From: Joshua Moerman <joshua@keesmoerman.nl>
Date: Sat, 23 Apr 2011 15:07:38 +0200
Subject: [PATCH] better randomness

---
 Attractor.cpp        | 14 +++++++-------
 AttractorKernel.hpp  |  4 ++--
 kernels/Lorenz3D.hpp |  8 ++++----
 3 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/Attractor.cpp b/Attractor.cpp
index f8f6d1e..16be1b0 100644
--- a/Attractor.cpp
+++ b/Attractor.cpp
@@ -24,25 +24,25 @@ Attractor::Attractor(const std::string& filename) : kernel(0), projector(0) {
 
 Attractor::Attractor(){
 	stfu::node kernel_node;
-	switch(rand()%5){
+	switch(rand()%3){
 	case 0:
 		kernel_node.value("type") = "lorenz";
 		kernel_node.value("dimensions") = "3";
 		break;
-	case 1:
+	/*case 1:
 		kernel_node.value("type") = "polynomial";
 		kernel_node.value("dimensions") = std::string() + (char)(rand()%3 + '2');
 		kernel_node.value("orde") = std::string() + (char)(rand()%5 + '1');
-		break;
-	case 2:
+		break;*/
+	case 1:
 		kernel_node.value("type") = "polynomial a";
 		kernel_node.value("dimensions") = "3";
 		break;
-	case 3:
+	/*case 3:
 		kernel_node.value("type") = "logistic";
 		kernel_node.value("dimensions") = std::string() + (char)(rand()%3 + '2');
-		break;
-	case 4:
+		break;*/
+	case 2:
 		kernel_node.value("type") = "unravel";
 		kernel_node.value("dimensions") = "3";
 		break;
diff --git a/AttractorKernel.hpp b/AttractorKernel.hpp
index fceaa65..35d223c 100644
--- a/AttractorKernel.hpp
+++ b/AttractorKernel.hpp
@@ -69,9 +69,9 @@ public:
 
 	virtual void generate_random_parameters() {
 		for(unsigned int i = 0; i < numberOfParameters; ++i)
-			parameters[i] = 2.0 * rand() / double(RAND_MAX) - 1.0;
+			parameters[i] = 6.0 * rand() / double(RAND_MAX) - 3.0;
 		for(unsigned int i = 0; i < dimension; ++i)
-			vectorNew[i] = vectorOld[i] = 6.0 * rand() / double(RAND_MAX) - 3.0;
+			vectorNew[i] = vectorOld[i] = 2.0 * rand() / double(RAND_MAX) - 1.0;
 	}
 
 #pragma mark -
diff --git a/kernels/Lorenz3D.hpp b/kernels/Lorenz3D.hpp
index 73f6954..92c5b3b 100644
--- a/kernels/Lorenz3D.hpp
+++ b/kernels/Lorenz3D.hpp
@@ -17,10 +17,10 @@ public:
 	}
 
 	virtual void generate_random_parameters() {
-		parameters[0] = rand() / double(RAND_MAX) * 0.01;
-		parameters[1] = rand() / double(RAND_MAX) * 10.0 + 23.0;
-		parameters[2] = rand() / double(RAND_MAX) * 4.0 + 8.0;
-		parameters[3] = rand() / double(RAND_MAX) * 1.5 + 2.0;
+		parameters[0] = rand() / double(RAND_MAX) * 0.02;
+		parameters[1] = rand() / double(RAND_MAX) * 4.0 + 8.0;
+		parameters[2] = rand() / double(RAND_MAX) * 10.0 + 23.0;
+		parameters[3] = rand() / double(RAND_MAX) * 4.0;
 		init();
 	}