8 files changed, 281 insertions, 185 deletions

diff --git a/fiz/naloga/podatki-obdelani/a.out b/fiz/naloga/podatki-obdelani/a.out
new file mode 100755
index 0000000..ac61ebe
--- /dev/null
+++ b/fiz/naloga/podatki-obdelani/a.out
diff --git a/fiz/naloga/podatki-obdelani/obdelaj.c b/fiz/naloga/podatki-obdelani/obdelaj.c
new file mode 100644
index 0000000..bc855ae
--- /dev/null
+++ b/fiz/naloga/podatki-obdelani/obdelaj.c
@@ -0,0 +1,142 @@
+#define _XOPEN_SOURCE
+#include <stdio.h>
+#include <dirent.h>
+#include <time.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+struct meritev {
+	int t_alpha; /* milisekunde */
+	long double F_m;
+	long double h_alpha;
+	long double F_alpha;
+	long double V_alpha; /* litri */
+	long double F_g;
+};
+struct poskus {
+	int id;
+	struct tm cas;
+	struct meritev meritev[256]; /* maks 256 meritev */
+	int meritevn;
+	long double t_m; /* milisekunde */
+	long double F_alpha_avg;
+	long double a_k;
+	int P_0;
+	long double V_0;
+	long double t_0; /* čas, ko je prvič F_m > 0.5 N */
+};
+long double /* liter */ h2v (long double /* meter */ x) {
+	if (x > 0.245)
+		return 1;
+	if (x < 0.055)
+		return 0;
+	return 0.106 + (0.001459010809 /* r^2 */ * 3.14159265 * (x - 0.055));
+}
+int main (int argc, char ** argv) {
+	DIR * videod, * vagad;
+	struct dirent * dir;
+	struct poskus poskus[256]; /* maks 256 poskusov */
+	int i = 0;
+	/* videod = opendir("../podatki-video"); */
+	vagad = opendir("../podatki-vaga");
+	if (/* !videod || */ !vagad) {
+		fprintf(stderr, "ni uspelo odpreti direktorija!\n");
+		/* closedir(videod); */
+		closedir(vagad);
+		return 1;
+	}
+	fprintf(stderr, "berem direktorij ... \n");
+	while ((dir = readdir(vagad)) != NULL) {
+		strptime(dir->d_name, "%m%d%H%M", &poskus[i].cas);
+		sscanf(dir->d_name, "%d-%LfL-%dbar", &poskus[i].id, &poskus[i].V_0, &poskus[i].P_0);
+		char videofn[256], vagafn[256], buf[256], outfn[256];
+		snprintf(videofn, 256, "../podatki-video/za-%d.csv", poskus[i].id);
+		snprintf(vagafn, 256, "../podatki-vaga/%s", dir->d_name);
+		if (strstr(dir->d_name, "slabfilm") || strstr(dir->d_name, "brezfilma") || dir->d_name[3] == '0')
+			continue;
+		FILE * vagaf = fopen(vagafn, "r");
+		FILE * videof = fopen(videofn, "r");
+		if (!vagaf || !videof) {
+			fclose(vagaf);
+			fclose(videof);
+			fprintf(stderr, "ni uspelo odpreti %s ali %s\n", vagafn, videofn);
+			continue;
+		}
+		int t0;
+		long double ldbuf;
+		char * cp;
+		fgets(buf, 256, vagaf);
+		poskus[i].meritevn = 0;
+		while (!feof(vagaf)) {
+#define nmer poskus[i].meritev[poskus[i].meritevn]
+			ldbuf = strtold(buf, &cp);
+			if (!poskus[i].meritevn)
+				t0 = ldbuf;
+			nmer.t_alpha = ldbuf - t0;
+			cp++;
+			ldbuf = strtold(cp, &cp);
+			nmer.F_m = ldbuf*9.81;
+			nmer.F_alpha = 0;
+			fgets(buf, 256, vagaf);
+			poskus[i].meritevn++;
+		}
+		fgets(buf, 256, videof);
+		while (!feof(videof)) {
+			ldbuf = strtold(buf, &cp);
+			ldbuf = (ldbuf*1000);
+			int j = 0;
+#define omer poskus[i].meritev[j]
+			for (j = 0; j < poskus[i].meritevn - 1; j++)
+				if (poskus[i].meritev[j].t_alpha <= ldbuf && poskus[i].meritev[j+1].t_alpha > ldbuf)
+					break;
+			cp++;
+			omer.h_alpha = strtold(cp, &cp);
+			omer.V_alpha = h2v(omer.h_alpha);
+			omer.F_g = 0.0005*9.81 /* teža plastenke */ + omer.V_alpha*9.81 /* teža vode */;
+			omer.F_alpha = omer.F_m + omer.F_g;
+		}
+		int intbuf = -1;
+		poskus[i].t_0 = 0;
+		for (int j = 0; j < poskus[i].meritevn; j++) {
+			if (intbuf != -1 && poskus[i].meritev[j].F_m < 0.5) {
+				poskus[i].t_m = poskus[i].meritev[j].t_alpha - poskus[i].meritev[intbuf].t_alpha;
+				poskus[i].F_alpha_avg = 0;
+				for (int k = intbuf; k <= j; k++) {
+					poskus[i].F_alpha_avg += poskus[i].meritev[k].F_alpha;
+				}
+				poskus[i].F_alpha_avg /= ((j-intbuf)+1) ? (j-intbuf)+1 : fprintf(stderr, "deljenje z nič pri %s\n", vagafn);
+			}
+			if (poskus[i].meritev[j].F_m > 0.5) {
+				intbuf /* pričetek intervala */ = j ? j - 1 : j;
+				poskus[i].t_0 = poskus[i].meritev[j].t_alpha;
+			}
+		}
+		poskus[i].a_k = 0;
+		for (int j = 0; j < poskus[i].meritevn; j++) /* poor man's integral function */
+			poskus[i].a_k += poskus[i].meritev[j].F_alpha/(poskus[i].meritev[j].F_g/9.81);
+		snprintf(outfn, 256, "%08d-%LfL-%dbar.csv", poskus[i].id, poskus[i].V_0, poskus[i].P_0);
+		FILE * outf = fopen(outfn, "w");
+		if (!outf) {
+			fprintf(stderr, "ni uspelo odpreti za pisanje datoteke %s\n", outf);
+			continue;
+		}
+		for (int j = 0; j < poskus[i].meritevn; j++) {
+			fprintf(outf, "%d,%Lf,%Lf,%Lf,%Lf,%Lf\n",
+					poskus[i].meritev[j].t_alpha,
+					poskus[i].meritev[j].F_m,
+					poskus[i].meritev[j].h_alpha,
+					poskus[i].meritev[j].F_alpha,
+					poskus[i].meritev[j].V_alpha,
+					poskus[i].meritev[j].F_g
+					);
+		}
+		fclose(vagaf);
+		fclose(videof);
+		fclose(outf);
+		fprintf(stdout, "zabeležil %d: V_0: %Lf, P_0: %Lf, a_k: %Lf, t_m: %Lf, F_alpha_avg: %Lf\n",
+			poskus[i].id, poskus[i].V_0, poskus[i].P_0, poskus[i].a_k, poskus[i].t_m, poskus[i].F_alpha_avg);
+		i++;
+	}
+	/* closedir(videod); */
+	closedir(vagad);
+}
diff --git a/fiz/naloga/predstavitev/dokument.log b/fiz/naloga/predstavitev/dokument.log
index 2ffdd1a..326ec01 100644
--- a/fiz/naloga/predstavitev/dokument.log
+++ b/fiz/naloga/predstavitev/dokument.log
@@ -1,4 +1,4 @@
-This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021) (preloaded format=pdflatex 2021.4.17)  1 JUN 2021 16:13
+This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021) (preloaded format=pdflatex 2021.4.17)  1 JUN 2021 20:30
 entering extended mode
  \write18 enabled.
  %&-line parsing enabled.
@@ -1961,28 +1961,6 @@ Overfull \hbox (5.0pt too wide) in paragraph at lines 171--171
 [5
 
  <../tekst/img-tracked/rampa.jpg>]
-
-LaTeX Warning: Command \v invalid in math mode on input line 196.
-
-! Please use \mathaccent for accents in math mode.
-\add@accent ... \let \ignorespaces \relax \accent 
-                                                  #1 #2\egroup \spacefactor ...
-l.196 \end{frame}
-                 
-I'm changing \accent to \mathaccent here; wish me luck.
-(Accents are not the same in formulas as they are in text.)
-
-! You can't use `\spacefactor' in math mode.
-\add@accent ... \accent #1 #2\egroup \spacefactor 
-                                                  \accent@spacefactor 
-l.196 \end{frame}
-                 
-Sorry, but I'm not programmed to handle this case;
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 File: totem.jpg Graphic file (type jpg)
 <use totem.jpg>
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-and I'll forget about whatever was undefined.
-
-
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+Overfull \hbox (1.17192pt too wide) detected at line 235
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-l.234 \end{frame}
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-l.234 \end{frame}
-                 
-Sorry, but I'm not programmed to handle this case;
-I'll just pretend that you didn't ask for it.
-If you're in the wrong mode, you might be able to
-return to the right one by typing `I}' or `I$' or `I\par'.
-
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+(Font)              for symbol `textbraceleft' on input line 235.
+
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 [7
@@ -2067,9 +2011,24 @@ Overfull \vbox (60.63068pt too high) detected at line 234
 
 ] [9
 
-] [10
-
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+<kompresor.jpg, id=379, 1071.00125pt x 1656.1875pt>
+File: kompresor.jpg Graphic file (type jpg)
+<use kompresor.jpg>
+Package pdftex.def Info: kompresor.jpg  used on input line 276.
+(pdftex.def)             Requested size: 216.67201pt x 335.0476pt.
+
+Overfull \hbox (5.0pt too wide) in paragraph at lines 276--276
+ [] 
+ []
+
+
+Overfull \vbox (47.67085pt too high) detected at line 276
+ []
+
+[10
+
+ <./kompresor.jpg>]
 
 Package biblatex Warning: '\mainlang' is deprecated in favour of
 (biblatex)                '\textmainlang'.
@@ -2081,7 +2040,7 @@ Package biblatex Warning: '\mainlang' is deprecated in favour of
 
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@@ -2112,10 +2071,10 @@ Package logreq Info: Writing requests to 'dokument.run.xml'.
 
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-Output written on dokument.pdf (14 pages, 16231255 bytes).
+Output written on dokument.pdf (14 pages, 16790038 bytes).
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+ 588 PDF objects out of 1000 (max. 8388607)
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+ 257 words of extra memory for PDF output out of 10000 (max. 10000000)
 
diff --git a/fiz/naloga/predstavitev/dokument.pdf b/fiz/naloga/predstavitev/dokument.pdf
index 9b935b2..e3f1b30 100644
--- a/fiz/naloga/predstavitev/dokument.pdf
+++ b/fiz/naloga/predstavitev/dokument.pdf
diff --git a/fiz/naloga/predstavitev/dokument.synctex.gz b/fiz/naloga/predstavitev/dokument.synctex.gz
index 573ac50..71e7e33 100644
--- a/fiz/naloga/predstavitev/dokument.synctex.gz
+++ b/fiz/naloga/predstavitev/dokument.synctex.gz
diff --git a/fiz/naloga/predstavitev/dokument.tex b/fiz/naloga/predstavitev/dokument.tex
index 265a6a9..b55f26e 100644
--- a/fiz/naloga/predstavitev/dokument.tex
+++ b/fiz/naloga/predstavitev/dokument.tex
@@ -181,9 +181,9 @@
 			\item \textit{masa plastenke}, \textit{kalibracijski delitelj vage}
 			\item \textbf{čas, ko je $F_\alpha > F_g$}, \textbf{maksimalna $F_m$ $\rightarrow$ maksimalna $F_\alpha$}, \textbf{povprečna $F_m$/$F_\alpha$}
 			\item \texttt{začetna količina vode v plastenki ($V_0$): \SI{0,3}{\liter}, \SI{0,6}{\liter} in \SI{0,9}{\liter}}, \texttt{začetni tlak v plastenki ($P_0$): \SI{10}{\kilo\pascal}, \SI{20}{\kilo\pascal}, \SI{30}{\kilo\pascal} in \SI{40}{\kilo\pascal}}
-			\item Grafi, s katerimi bodo prikazane meritve: $F_\alpha(t)$, $F_\alpha(P_0)$, $F_\alpha(V_0)$, $\tavg(V_0)$, $\tavg(P_0)$, $š_{max}(V_0, P_0)$ -- predv. viš.
+			\item Grafi, s katerimi bodo prikazane meritve: $F_\alpha(t)$, $F_\alpha(P_0)$, $F_\alpha(V_0)$, $\tavg(V_0)$, $\tavg(P_0)$, $v_{k}(V_0, P_0)$ -- končna hitrost
 			\item Za vsako kombinacijo volumna in pritiska so bile izvedene tri meritve, katerih povprečje se upošteva
-			\item Videoanaliza bo uporabljena za $t_0$ in za $h_\alpha \rightarrow V_\alpha \rightarrow m_\alpha$
+			\item Videoanaliza bo uporabljena za $t_0$ in za $h_\alpha \rightarrow V_\alpha \rightarrow m_\alpha \rightarrow F_{g_\alpha}$
 		\end{itemize}
 		\vfill\null\columnbreak
 		\vspace*{-4cm}
@@ -202,24 +202,25 @@
 	\begin{multicols}{2}
 		\begin{itemize}
 			\item CSV datoteki: $F_m(t)$ in $h_\alpha(t)$
-			\item Natančnost: $F_m$: \SI{1}{\centi\newton}, $h_\alpha$: \SI{1}{\milli\meter}
+			\item Natanč.: $F_m$: \SI{1}{\centi\newton}, $h_\alpha$: \SI{1}{\milli\meter}, $t$: \SI[parse-numbers=false]{\frac{1}{11}}{\second}
 			\item $h_\alpha \rightarrow V_\alpha$:
 		\end{itemize}
 			$$
-				g(x) = \SI{106}{\milli\liter}+(x-\SI{5,5}{\centi\meter})\cdot\pii(\SI{38,197}{\milli\meter})^2
+				g(x) = \SI{106}{\milli\liter}+(x-\SI{5,5}{\centi\meter})\cdot\pi\cdot(\SI{38,197}{\milli\meter})^2
 			$$
 			\[
 				f(x) =
 				\begin{dcases}
 					g(x); & \SI{5,5}{\centi\meter} \leq x \leq \SI{24,5}{\centi\meter} \\
 					x < \SI{106}{\milli\liter}; & x < \SI{5,5}{\centi\meter} \\
-					\SI{947}{\milli\liter} > & \\
+					%\SI{947}{\milli\liter} > & \\
+					\SI{1}{\liter} > & \\
 					x > \SI{871}{\milli\liter}; & x > \SI{24,5}{\centi\meter}
 				\end{dcases}
 			\]
 		\begin{itemize}
 			\item $\tavg$: čas, ko je $F_m > \SI{0,5}{\newton}$
-			\item Po obdelavi: \{$F_\alpha$, $V_\alpha$\}($t$) in \{$\tavg$, $\overline{F_\alpha}$, $š_{max}$\}(\{$P_0$, $V_0$\})
+			\item Po obdelavi s programom \texttt{obdelaj.c}: \{$F_\alpha$, $V_\alpha$\}($t$) in \{$\tavg$, $\overline{F_\alpha}$, $v_{k}$\}(\{$P_0$, $V_0$\})
 		\end{itemize}
 		\vfill\null\columnbreak
 		\vspace*{-4cm}
@@ -249,10 +250,28 @@
 \subsection{Rezultati in komentarji nanje ter ugotovitve}
 \begin{frame}
 	\frametitle{\secname}
+	\framesubtitle{\subsecname}
 	\begin{multicols}{2}
 		\begin{itemize}
-			\item Obstajajo kombinacije $P_0$ in $V_0$, kjer voda ne bo v celoti izrinjena, ker bo prej $P_\alpha = 0$
+			\item Obstajajo kombinacije $P_0$ in $V_0$, kjer voda ne bo v celoti izrinjena, ker bo prej $P_\alpha = 0$. Bojlov zakon:
+				$$
+					P_1V_1=P_2V_2 \rightarrow
+				$$
+				$$	
+					\text{izlito} = P_0\cdot(\SI{1}{\liter}-V_0)-(\SI{1}{\liter}-V_0)
+				$$
+			\item 2. njutnov zakon:
+				\[
+					a=\frac{R}{m} \rightarrow
+					\int_{F_m > \SI{0}{\newton}}^{F_m < \SI{0}{\newton}} \frac{R_\alpha}{m_\alpha} d\alpha = a_k
+				\]
 		\end{itemize}
+		\vfill\null\columnbreak
+		\vspace*{-4cm}
+		\begin{figure}[H]
+			\centering
+			\includegraphics[width=0.5\textwidth]{kompresor.jpg}
+		\end{figure}
 	\end{multicols}
 \end{frame}
 
diff --git a/fiz/naloga/predstavitev/stderr.log b/fiz/naloga/predstavitev/stderr.log
index 675931e..e85351f 100644
--- a/fiz/naloga/predstavitev/stderr.log
+++ b/fiz/naloga/predstavitev/stderr.log
@@ -1 +1 @@
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+<</Type/XRef/Filter/FlateDecode/ID[<4FFF7B9A65CA4B194627933366624A26><4FFF7B9A65CA4B194627933366624A26>]/Index[ 0 589]/Info 587 0 R/Length 1423/Root 586 0 R/Size 589/W[ 1 4 1]>>
diff --git a/fiz/naloga/predstavitev/stdout.log b/fiz/naloga/predstavitev/stdout.log
index 5341d27..06329a3 100644
--- a/fiz/naloga/predstavitev/stdout.log
+++ b/fiz/naloga/predstavitev/stdout.log
@@ -438,58 +438,30 @@ Overfull \hbox (5.0pt too wide) in paragraph at lines 146--146
 Overfull \hbox (5.0pt too wide) in paragraph at lines 171--171
  [] 
 [5 <../tekst/img-tracked/rampa.jpg>]
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-l.196 \end{frame}
-                 
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-\add@accent ... \accent #1 #2\egroup \spacefactor 
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-l.234 \end{frame}
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    **** Error:  An error occurred while reading an XREF table.
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