Transformacija koordinata pomoću proj.4 modula

Vrlo često dobijem upit kako konvertirati neku koordinatu iz Hrvatskog koordinatnog sustava u WGS84 (GPS) ili obrnuto. Većina CAD i GIS softvera dolazi da svojom bazom svjetskih koordinatnih sustava i često među njima je i Hrvatska. Iako ljudi koriste te predefinirane koordinate sustave, često oni nisu dobro podešeni i dobiveni rezultati budu krvi. Potaknut tim problemom, napisan je kratki vodič u transformaciju koordinata pomoću proj.4 modula. Kao softver za transformaciju korišten je mali program cs2cs.exe koji dolazi s proj.4 bibliotekom.
Iako je od ove godine u Hrvatskoj na snazi novi koordinati sustav, još uvijek velika većina (čitaj: svi podaci) podataka se nalaze u starom koordinatnom sustavu. U ovom kratkom vodiču sam pokušao na što jednostavniji način objasniti vezu između koordinatnih sustava, datuma i projekcija te postavio primjere kako transformirati koordinate iz jednog sustava u drugi. Kroz sljedeći kratki vodič će biti prikazano kako transformirati cijelu datoteku pomoću proj.4 i OGR modula, a ne samo koordinatu po koordinatu.

Link na kratki vodič.

Tips On How To Manage Sleep Apnea

Has your snoring prevented you from getting good sleep for years? If you have not seen a doctor about this issue, you might be experiencing a dangerous and serious form of snoring associated with sleep apnea. If this rings true, then try not worry!. The article below can help.

Skip sleeping pills if you are prone to bouts of sleep apnea. You may feel you need them to get to sleep, but they have a similar effect as alcohol on the body. They also have additional side effects besides the obvious ones. Stay away if you want to lessen your sleep apnea symptoms.

If you have sleep apnea, yet you drink alcohol and smoke cigarettes, quitting could alleviate your symptoms. Both smoking and drinking promote relaxation of the airways causing sleep apnea and excessive snoring. If you avoid these things, it may help your sleep apnea.

Improve your sleep apnea by slimming down a bit. Recent research showed dramatic improvements in overweight men who shed 25 pounds over a period of one year to reduce sleep apnea symptoms. In some cases, the weight loss resulted in a cure of sleep apnea where no further treatment of the condition was necessary.

Understand the effects that smoking and drinking alcohol have on sleep apnea, if you are trying to get a grip on your quality of sleep. Smoking enlarges airways, while alcohol can relax them too much, both of which will contribute to the symptoms of sleep apnea severely. Consider making the necessary cut-backs that will cut down on your sleep problems.

Keep your bedroom in prime shape for sleeping. Insomnia and sleep apnea are often connected. This makes keeping an environment in which you sleep at the right temperature, lightness level and sound level important for helping you get a good night of rest. The right environment also means leaving your stresses outside the bedroom to ensure you are relaxed enough to fall asleep.

Should you suffer from sleep apnea, keep a regular sleep schedule. Your condition is already messing with your regular sleep cycle every night. If you can get on a better scheducle you will help your symptoms. The adjustment that is most important is your sleep schedule.

Drink one cup of caffeinated coffee a few hours before you go to sleep. It may seem silly to drink a caffeine drink at night, but this can actually help keep your throat open while you sleep. You may have to play around with what time you drink the coffee to avoid restlessness.

Minimize your risk from the conditions causing sleep apnea. Some sleep apnea risk factors cannot be changed, like genetic or hereditary reasons. But others, such as weight smoking and drinking, can be controlled.

These tips were written especially for people who suffer from apnea, whether directly or indirectly as a bed partner. While it can be quite difficult to completely remove apnea from your life, there are ways to live with it, and these were touched on in this useful sleep apnea article.