Ntsuas yog dab tsi? Diam duab scale, daim ntawv qhia scale

2024 Tus sau: Sierra Becker | [email protected]. Kawg hloov kho: 2024-02-26 05:10

Peb txhua tus paub tias qhov ntsuas yog dab tsi. Qhov no yog qhov piv ntawm linear qhov ntev ntawm cov duab kos duab rau qhov tseeb qhov ntev ntawm cov khoom piav qhia. Ntawd yog, nws yog kev ua raws li qee qhov kev faib ua feem thaum lub sijhawm siv cov duab kos duab lossis duab kho.

ntsuas yog dab tsi thiab vim li cas thiaj xav tau

Txoj kev hloov cov duab no yog siv rau txhua yam, los ntawm daim duab qhia chaw thiab kos duab rau cov duab zoo tib yam. Yog lawm, tab sis tsis yog ib txwm xav tau cov duab tuaj yeem tsim tawm hauv qhov loj. Nyob rau hauv cov ntaub ntawv no, lub teev los cawm. Ua tsaug rau nws, cov duab tuaj yeem raug txo los yog loj, thaum tswj qhov tsim nyog proportions, uas tau qhia rau ntawm cov duab kos. Peb twb paub tias qhov ntsuas yog dab tsi, yog li cia peb tham txog nws ob hom.

Magnification scale

Qhov kev pom no yog siv thaum lub neej-loj duab me dua li hauv cov duab kos. Nyob rau hauv cov ntaub ntawv no, cov proportions ntawm daim duab no yog qhia nyob rau hauv ib tug tshwj xeeb kem (2: 1, 8: 1, 16: 1, 150: 1, thiab hais txog). Feem ntau yuav tsum to taub raws li hauv qab no: tus lej raug qhia tiastag nrho cov duab kos yuav tsum muab faib ua centimeters (piv txwv li, 1 centimeter), thiab sab laug - pes tsawg zaus cov khoom raug txo los ntawm 1 centimeter ntawm daim duab duab. Qhov ntawd yog, yog tias peb muaj cov cim 2: 1, qhov no txhais tau hais tias rau 1 centimeter ntawm kab kos muaj 0.5 centimeters ntawm cov khoom.

Zoom txo

Qhov kev pom no yog siv thaum cov khoom yuav tsum tau piav qhia ntau dua qhov loj ntawm daim duab. Hauv kab ke tshwj xeeb, peb qhia pes tsawg zaus cov khoom tshaj li duab (piv txwv li, 1: 2, 1: 250, 1: 1000, thiab lwm yam). Tus lej sab laug qhia tias yuav tsum muaj pes tsawg centimeters los faib cov duab kos (piv txwv li, los ntawm 1 centimeter), thiab tus lej raug qhia tias muaj pes tsawg qhov ntsuas ib 1 centimeter. Piv txwv li, peb muaj ib daim ntawv qhia nrog lub teev teev ntawm 1: 2,000,000 cm, uas txhais tau hais tias muaj 2,000,000 centimeters ntawm struts ib 1 centimeter ntawm daim ntawv qhia (los yog 20,000 meters, los yog 20 kilometers ib 1 centimeter).

Yuav ua li cas ntsuas cov duab

Nws yooj yim heev los txiav txim seb yuav ua li cas daim duab qhia lossis kos duab, tab sis nws nyuaj heev kom nkag siab tias qhov ntsuas ntawm cov duab yog dab tsi. Cov duab zoo li no muaj lwm qhov ntsuas ntsuas, uas yog kev daws teeb meem, nyob ntawm tus lej ntawm pixels hauv daim duab muab. Thaum scaling cov duab, koj yuav tsum tau them sai sai rau cov pixels, vim hais tias los ntawm kev nce qhov loj ntawm daim duab nrog ib tug me me pixels, peb degrade nws zoo thiab vice versa. Muaj ntau yam kev pab cuam uas tuaj yeem ua tauua cov haujlwm no yam tsis tau ua kom cov duab zoo. Lawv lub hauv paus ntsiab lus ntawm kev ua haujlwm yog raws li qhov nce ntawm cov pixels hauv ib qho duab tshwj xeeb, vim tias qhov kev daws teeb meem nce ntxiv, uas yog, qhov loj ntawm cov duab tsim dua tshiab. Cov kev pab cuam no tuaj yeem pom hauv khw tshwj xeeb lossis rub tawm hauv Is Taws Nem, tab sis nws yog qhov zoo tshaj plaws los yuav cov ntawv tso cai discs thiab tsis rub tawm cov ntawv luam tawm, uas tuaj yeem ua rau koj lub khoos phis tawj degrade thiab ua rau nws tsis tuaj yeem ua cov duab ntawm nws.