version 5.4.0

remove CORS default header from PIHTTPServer fix several docs fix PIMathVector::dot return type add units directory with PIUnits facility
2025-09-26 21:33:45 +03:00
parent daab41e41e
commit 5db97ca959
30 changed files with 1888 additions and 556 deletions
--- a/libs/main/units/piunits_prefix.h
+++ b/libs/main/units/piunits_prefix.h
@@ -0,0 +1,95 @@
+/*! \file piunits_prefix.h
+ * \ingroup Core
+ * \~\brief
+ * \~english Unit prefixes
+ * \~russian Префиксы единиц измерения
+ */
+/*
+    PIP - Platform Independent Primitives
+    Unit prefix
+    Ivan Pelipenko peri4ko@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef PIUNITS_PREFIX_H
+#define PIUNITS_PREFIX_H
+
+#include "pistring.h"
+
+namespace PIUnits {
+
+class PIP_EXPORT Prefix {
+	friend class Value;
+
+public:
+	enum {
+		None,
+
+		Deca = 0x100, // da	10^1 	10
+		Hecto,        // h 	10^2 	100
+		Kilo,         // k 	10^3 	1000
+		Mega,         // M 	10^6 	1000000
+		Giga,         // G 	10^9 	1000000000
+		Tera,         // T 	10^12 	1000000000000
+		Peta,         // P 	10^15 	1000000000000000
+		Exa,          // E 	10^18 	1000000000000000000
+		Zetta,        // Z 	10^21 	1000000000000000000000
+		Yotta,        // Y 	10^24 	1000000000000000000000000
+		Ronna,        // R 	10^27 	1000000000000000000000000000
+		Quetta,       // Q 	10^30 	1000000000000000000000000000000
+
+		Deci = 0x200, // d 	10^−1 	0.1
+		Centi,        // c 	10^−2 	0.01
+		Milli,        // m 	10^−3 	0.001
+		Micro,        // μ 	10^−6 	0.000001
+		Nano,         // n 	10^−9 	0.000000001
+		Pico,         // p 	10^−12 	0.000000000001
+		Femto,        // f 	10^−15 	0.000000000000001
+		Atto,         // a 	10^−18 	0.000000000000000001
+		Zepto,        // z 	10^−21 	0.000000000000000000001
+		Yocto,        // y 	10^−24 	0.000000000000000000000001
+		Ronto,        // r 	10^−27 	0.000000000000000000000000001
+	};
+
+	static PIString name(int prefix);
+	static PIString prefix(int prefix);
+	static double multiplier(int prefix);
+
+private:
+	Prefix();
+	NO_COPY_CLASS(Prefix);
+	static Prefix & instance();
+	static PIString valueToString(double v, void * type_class, int type, char format = 'g', int prec = 5);
+
+	struct P {
+		PIString name;
+		PIString prefix;
+		int pow;
+		double divider;
+		bool non3;
+	};
+
+	const P getPrefix(int p) const;
+	const P getPrefixForValue(double v, bool use_non3, bool use_greater, bool use_smaller) const;
+
+	PIMap<int, P> prefixes;
+	PIMap<int, P *> prefixes_by_pow;
+	P def_prefix;
+};
+
+} // namespace PIUnits
+
+
+#endif